replace router.png with pyramid_router.svg and make design consistent

3 files changed, 1624 insertions, 0 deletions

diff --git a/docs/_static/pyramid_router.graffle b/docs/_static/pyramid_router.graffle
new file mode 100644
index 000000000..217878426
--- /dev/null
+++ b/docs/_static/pyramid_router.graffle
@@ -0,0 +1,1621 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>ActiveLayerIndex</key>
+	<integer>0</integer>
+	<key>ApplicationVersion</key>
+	<array>
+		<string>com.omnigroup.OmniGrafflePro</string>
+		<string>139.18.0.187838</string>
+	</array>
+	<key>AutoAdjust</key>
+	<true/>
+	<key>BackgroundGraphic</key>
+	<dict>
+		<key>Bounds</key>
+		<string>{{0, 0}, {576, 733}}</string>
+		<key>Class</key>
+		<string>SolidGraphic</string>
+		<key>ID</key>
+		<integer>2</integer>
+		<key>Style</key>
+		<dict>
+			<key>shadow</key>
+			<dict>
+				<key>Draws</key>
+				<string>NO</string>
+			</dict>
+			<key>stroke</key>
+			<dict>
+				<key>Draws</key>
+				<string>NO</string>
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+		</dict>
+	</dict>
+	<key>BaseZoom</key>
+	<integer>0</integer>
+	<key>CanvasOrigin</key>
+	<string>{0, 0}</string>
+	<key>ColumnAlign</key>
+	<integer>1</integer>
+	<key>ColumnSpacing</key>
+	<real>36</real>
+	<key>CreationDate</key>
+	<string>2014-12-01 08:25:13 +0000</string>
+	<key>Creator</key>
+	<string>Steve Piercy</string>
+	<key>DisplayScale</key>
+	<string>1 0/72 in = 1 0/72 in</string>
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+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
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+			<key>Tail</key>
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+				<key>Color</key>
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+					<key>w</key>
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+				<key>Font</key>
+				<string>Helvetica</string>
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+			<key>Style</key>
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+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>3</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{123.72916793823259, 360.44446818033811}, {156.62496948242188, 76.888862609863281}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>169404</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Diamond</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.422927</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>1</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 Current user has 
+\b authorization
+\b0  to invoke the view callable?}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{283.07625736262997, 281.88889694213805}, {26, 24}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>FitText</key>
+			<string>YES</string>
+			<key>Flow</key>
+			<string>Resize</string>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>ID</key>
+			<integer>169403</integer>
+			<key>Line</key>
+			<dict>
+				<key>ID</key>
+				<integer>169402</integer>
+				<key>Offset</key>
+				<real>7.3333320617675781</real>
+				<key>Position</key>
+				<real>0.4865129292011261</real>
+				<key>RotationType</key>
+				<integer>0</integer>
+			</dict>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\fs24 \cf0 No}</string>
+			</dict>
+			<key>Wrap</key>
+			<string>NO</string>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>ControlPoints</key>
+			<array>
+				<string>{34.791667904111534, 0}</string>
+				<string>{-33.999994913736998, 0}</string>
+			</array>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>169401</integer>
+			</dict>
+			<key>ID</key>
+			<integer>169402</integer>
+			<key>Points</key>
+			<array>
+				<string>{265.20833208871704, 301.22222900390562}</string>
+				<string>{327.47911580403627, 301.22222900390562}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Bezier</key>
+					<true/>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.0980392</string>
+						<key>g</key>
+						<string>0.0980392</string>
+						<key>r</key>
+						<string>0.0980392</string>
+					</dict>
+					<key>HeadArrow</key>
+					<string>SharpArrow</string>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>3</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{327.47911580403627, 286.72222900390562}, {156.62496948242188, 29}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>169401</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.756045</string>
+						<key>g</key>
+						<string>0.75004</string>
+						<key>r</key>
+						<string>0.994455</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 Return the 
+\b Not Found View}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>ControlPoints</key>
+			<array>
+				<string>{0, 6.9840087890625}</string>
+				<string>{0, -9}</string>
+			</array>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>3</integer>
+				<key>Info</key>
+				<integer>2</integer>
+			</dict>
+			<key>ID</key>
+			<integer>169400</integer>
+			<key>Points</key>
+			<array>
+				<string>{202.04165903727255, 251}</string>
+				<string>{202.04165776570633, 276.22223154703772}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Bezier</key>
+					<true/>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.0980392</string>
+						<key>g</key>
+						<string>0.0980392</string>
+						<key>r</key>
+						<string>0.0980392</string>
+					</dict>
+					<key>HeadArrow</key>
+					<string>SharpArrow</string>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>169393</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{139.37498982747391, 276.22223154703778}, {125.33333587646484, 50}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>3</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Diamond</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.422927</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>1</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 View callable found?}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>ControlPoints</key>
+			<array>
+				<string>{0, 6.9840087890625}</string>
+				<string>{0, -9}</string>
+			</array>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>169393</integer>
+				<key>Info</key>
+				<integer>2</integer>
+			</dict>
+			<key>ID</key>
+			<integer>169396</integer>
+			<key>Points</key>
+			<array>
+				<string>{202.04165903727255, 196.77777862548834}</string>
+				<string>{202.04165903727255, 222}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Bezier</key>
+					<true/>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.0980392</string>
+						<key>g</key>
+						<string>0.0980392</string>
+						<key>r</key>
+						<string>0.0980392</string>
+					</dict>
+					<key>HeadArrow</key>
+					<string>SharpArrow</string>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>169392</integer>
+				<key>Info</key>
+				<integer>1</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>ControlPoints</key>
+			<array>
+				<string>{0, 6.9840087890625}</string>
+				<string>{0, -9}</string>
+			</array>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>169392</integer>
+			</dict>
+			<key>ID</key>
+			<integer>169395</integer>
+			<key>Points</key>
+			<array>
+				<string>{202.04165903727255, 142.55555725097662}</string>
+				<string>{202.04165903727255, 167.77777862548834}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Bezier</key>
+					<true/>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.0980392</string>
+						<key>g</key>
+						<string>0.0980392</string>
+						<key>r</key>
+						<string>0.0980392</string>
+					</dict>
+					<key>HeadArrow</key>
+					<string>SharpArrow</string>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>169391</integer>
+				<key>Info</key>
+				<integer>1</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Class</key>
+			<string>LineGraphic</string>
+			<key>ControlPoints</key>
+			<array>
+				<string>{0, 6.9840087890625}</string>
+				<string>{0, -9}</string>
+			</array>
+			<key>FontInfo</key>
+			<dict>
+				<key>Color</key>
+				<dict>
+					<key>w</key>
+					<string>0</string>
+				</dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>Head</key>
+			<dict>
+				<key>ID</key>
+				<integer>169391</integer>
+			</dict>
+			<key>ID</key>
+			<integer>169385</integer>
+			<key>Points</key>
+			<array>
+				<string>{202.04165903727255, 82.666667938232479}</string>
+				<string>{202.04165903727255, 107.88888931274418}</string>
+			</array>
+			<key>Style</key>
+			<dict>
+				<key>stroke</key>
+				<dict>
+					<key>Bezier</key>
+					<true/>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.0980392</string>
+						<key>g</key>
+						<string>0.0980392</string>
+						<key>r</key>
+						<string>0.0980392</string>
+					</dict>
+					<key>HeadArrow</key>
+					<string>SharpArrow</string>
+					<key>Legacy</key>
+					<true/>
+					<key>LineType</key>
+					<integer>1</integer>
+					<key>TailArrow</key>
+					<string>0</string>
+				</dict>
+			</dict>
+			<key>Tail</key>
+			<dict>
+				<key>ID</key>
+				<integer>19</integer>
+				<key>Info</key>
+				<integer>1</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{104.41666666666708, 222}, {195.24998474121094, 29}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>169393</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.815377</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>0.820561</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 Look up a 
+\b view callable
+\b0  in the 
+\b registry
+\b0  using the 
+\b context
+\b0  and 
+\b view name}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{104.41666666666708, 167.77777862548834}, {195.24998474121094, 29}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>169392</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.815377</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>0.820561</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\b\fs20 \cf0 Traversal
+\b0  locates\
+the 
+\b context
+\b0  and 
+\b view name}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{104.41666666666708, 107.88888931274418}, {195.24998474121094, 34.666667938232422}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>169391</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.815377</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>0.820561</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 Traverse the model graph\
+from the 
+\b root
+\b0  using the 
+\b path}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{104.41666666666708, 48.000000000000043}, {195.24998474121094, 34.666667938232422}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>ID</key>
+			<integer>19</integer>
+			<key>Magnets</key>
+			<array>
+				<string>{0, 1}</string>
+				<string>{0, -1}</string>
+				<string>{1, 0}</string>
+				<string>{-1, 0}</string>
+			</array>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Color</key>
+					<dict>
+						<key>b</key>
+						<string>0.815377</string>
+						<key>g</key>
+						<string>1</string>
+						<key>r</key>
+						<string>0.820561</string>
+					</dict>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\qc
+
+\f0\fs20 \cf0 Obtain a root object from the 
+\b root factory}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+		</dict>
+		<dict>
+			<key>Bounds</key>
+			<string>{{229.04165903727255, 20.000000000000934}, {90, 14}}</string>
+			<key>Class</key>
+			<string>ShapedGraphic</string>
+			<key>FitText</key>
+			<string>YES</string>
+			<key>Flow</key>
+			<string>Resize</string>
+			<key>FontInfo</key>
+			<dict>
+				<key>Font</key>
+				<string>Helvetica</string>
+				<key>Size</key>
+				<real>12</real>
+			</dict>
+			<key>ID</key>
+			<integer>169390</integer>
+			<key>Shape</key>
+			<string>Rectangle</string>
+			<key>Style</key>
+			<dict>
+				<key>fill</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+				<key>shadow</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+				<key>stroke</key>
+				<dict>
+					<key>Draws</key>
+					<string>NO</string>
+				</dict>
+			</dict>
+			<key>Text</key>
+			<dict>
+				<key>Pad</key>
+				<integer>0</integer>
+				<key>Text</key>
+				<string>{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf400
+\cocoascreenfonts1{\fonttbl\f0\fswiss\fcharset0 Helvetica;}
+{\colortbl;\red255\green255\blue255;}
+\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\pardirnatural\qc
+
+\f0\b\fs24 \cf0 &lt;%Canvas%&gt;}</string>
+				<key>VerticalPad</key>
+				<integer>0</integer>
+			</dict>
+			<key>Wrap</key>
+			<string>NO</string>
+		</dict>
+	</array>
+	<key>GridInfo</key>
+	<dict/>
+	<key>GuidesLocked</key>
+	<string>NO</string>
+	<key>GuidesVisible</key>
+	<string>YES</string>
+	<key>HPages</key>
+	<integer>1</integer>
+	<key>ImageCounter</key>
+	<integer>1</integer>
+	<key>KeepToScale</key>
+	<false/>
+	<key>Layers</key>
+	<array>
+		<dict>
+			<key>Lock</key>
+			<string>NO</string>
+			<key>Name</key>
+			<string>Layer 1</string>
+			<key>Print</key>
+			<string>YES</string>
+			<key>View</key>
+			<string>YES</string>
+		</dict>
+	</array>
+	<key>LayoutInfo</key>
+	<dict>
+		<key>Animate</key>
+		<string>NO</string>
+		<key>circoMinDist</key>
+		<real>18</real>
+		<key>circoSeparation</key>
+		<real>0.0</real>
+		<key>layoutEngine</key>
+		<string>dot</string>
+		<key>neatoSeparation</key>
+		<real>0.0</real>
+		<key>twopiSeparation</key>
+		<real>0.0</real>
+	</dict>
+	<key>LinksVisible</key>
+	<string>NO</string>
+	<key>MagnetsVisible</key>
+	<string>NO</string>
+	<key>MasterSheets</key>
+	<array/>
+	<key>ModificationDate</key>
+	<string>2014-12-01 09:19:51 +0000</string>
+	<key>Modifier</key>
+	<string>Steve Piercy</string>
+	<key>NotesVisible</key>
+	<string>NO</string>
+	<key>Orientation</key>
+	<integer>2</integer>
+	<key>OriginVisible</key>
+	<string>NO</string>
+	<key>PageBreaks</key>
+	<string>YES</string>
+	<key>PrintInfo</key>
+	<dict>
+		<key>NSBottomMargin</key>
+		<array>
+			<string>float</string>
+			<string>41</string>
+		</array>
+		<key>NSHorizonalPagination</key>
+		<array>
+			<string>coded</string>
+			<string>BAtzdHJlYW10eXBlZIHoA4QBQISEhAhOU051bWJlcgCEhAdOU1ZhbHVlAISECE5TT2JqZWN0AIWEASqEhAFxlwCG</string>
+		</array>
+		<key>NSLeftMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+		<key>NSPaperSize</key>
+		<array>
+			<string>size</string>
+			<string>{612, 792}</string>
+		</array>
+		<key>NSPrintReverseOrientation</key>
+		<array>
+			<string>int</string>
+			<string>0</string>
+		</array>
+		<key>NSRightMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+		<key>NSTopMargin</key>
+		<array>
+			<string>float</string>
+			<string>18</string>
+		</array>
+	</dict>
+	<key>PrintOnePage</key>
+	<false/>
+	<key>ReadOnly</key>
+	<string>NO</string>
+	<key>RowAlign</key>
+	<integer>1</integer>
+	<key>RowSpacing</key>
+	<real>36</real>
+	<key>SheetTitle</key>
+	<string>Pyramid Router</string>
+	<key>SmartAlignmentGuidesActive</key>
+	<string>YES</string>
+	<key>SmartDistanceGuidesActive</key>
+	<string>YES</string>
+	<key>UniqueID</key>
+	<integer>1</integer>
+	<key>UseEntirePage</key>
+	<false/>
+	<key>VPages</key>
+	<integer>1</integer>
+	<key>WindowInfo</key>
+	<dict>
+		<key>CurrentSheet</key>
+		<integer>0</integer>
+		<key>ExpandedCanvases</key>
+		<array>
+			<dict>
+				<key>name</key>
+				<string>Pyramid Router</string>
+			</dict>
+		</array>
+		<key>Frame</key>
+		<string>{{96, 20}, {1076, 1286}}</string>
+		<key>ListView</key>
+		<false/>
+		<key>OutlineWidth</key>
+		<integer>142</integer>
+		<key>RightSidebar</key>
+		<true/>
+		<key>ShowRuler</key>
+		<true/>
+		<key>Sidebar</key>
+		<true/>
+		<key>SidebarWidth</key>
+		<integer>120</integer>
+		<key>VisibleRegion</key>
+		<string>{{8, -10}, {532, 754.66666666666663}}</string>
+		<key>Zoom</key>
+		<real>1.5</real>
+		<key>ZoomValues</key>
+		<array>
+			<array>
+				<string>Pyramid Router</string>
+				<real>1.5</real>
+				<real>1</real>
+			</array>
+		</array>
+	</dict>
+</dict>
+</plist>
diff --git a/docs/_static/pyramid_router.png b/docs/_static/pyramid_router.png
new file mode 100644
index 000000000..3c9f81158
--- /dev/null
+++ b/docs/_static/pyramid_router.png
diff --git a/docs/_static/pyramid_router.svg b/docs/_static/pyramid_router.svg
new file mode 100644
index 000000000..1537777c9
--- /dev/null
+++ b/docs/_static/pyramid_router.svg
@@ -0,0 +1,3 @@
+<?xml version="1.0"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xl="http://www.w3.org/1999/xlink" version="1.1" viewBox="93 11 403 558" width="403pt" height="558pt"><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"><dc:date>2014-12-01 09:19Z</dc:date><!-- Produced by OmniGraffle Professional 5.4.4 --></metadata><defs><font-face font-family="Helvetica" font-size="12" units-per-em="1000" underline-position="-75.683594" underline-thickness="49.316406" slope="0" x-height="532.22656" cap-height="719.72656" ascent="770.01953" descent="-229.98047" font-weight="bold"><font-face-src><font-face-name name="Helvetica-Bold"/></font-face-src></font-face><font-face font-family="Helvetica" font-size="10" units-per-em="1000" underline-position="-75.683594" underline-thickness="49.316406" slope="0" x-height="522.94922" cap-height="717.28516" ascent="770.01953" descent="-229.98047" font-weight="500"><font-face-src><font-face-name name="Helvetica"/></font-face-src></font-face><font-face font-family="Helvetica" font-size="10" units-per-em="1000" underline-position="-75.683594" underline-thickness="49.316406" slope="0" x-height="532.22656" cap-height="719.72656" ascent="770.01953" descent="-229.98047" font-weight="bold"><font-face-src><font-face-name name="Helvetica-Bold"/></font-face-src></font-face><marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="SharpArrow_Marker" viewBox="-4 -4 10 8" markerWidth="10" markerHeight="8" color="#191919"><g><path d="M 5 0 L -3 -3 L 0 0 L 0 0 L -3 3 Z" fill="currentColor" stroke="currentColor" stroke-width="1"/></g></marker><font-face font-family="Helvetica" font-size="12" units-per-em="1000" underline-position="-75.683594" underline-thickness="49.316406" slope="0" x-height="522.94922" cap-height="717.28516" ascent="770.01953" descent="-229.98047" font-weight="500"><font-face-src><font-face-name name="Helvetica"/></font-face-src></font-face></defs><g stroke="none" stroke-opacity="1" stroke-dasharray="none" fill="none" fill-opacity="1"><title>Pyramid Router</title><rect fill="white" width="576" height="733"/><g><title>Layer 1</title><text transform="translate(229.04166 20)" fill="black"><tspan font-family="Helvetica" font-size="12" font-weight="bold" x=".32226562" y="11" textLength="89.35547">Pyramid Router</tspan></text><rect x="104.416667" y="48" width="195.24998" height="34.666668" fill="#d2ffd0"/><rect x="104.416667" y="48" width="195.24998" height="34.666668" stroke="black" stroke-linecap="round" stroke-linejoin="round" stroke-width="1"/><text transform="translate(109.416667 59.333334)" fill="black"><tspan font-family="Helvetica" font-size="10" font-weight="500" x=".088371277" y="10" textLength="129.51172">Obtain a root object from the </tspan><tspan font-family="Helvetica" font-size="10" font-weight="bold" x="129.60009" y="10" textLength="55.561523">root factory</tspan></text><rect x="104.416667" y="107.88889" width="195.24998" height="34.666668" fill="#d2ffd0"/><rect x="104.416667" 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