Regress PHONY (thanks to Baptiste Daroussin) and some documentation.

Makefile

@@ -1,4 +1,5 @@
 .SUFFIXES: .3 .3.html .8 .8.html .dot .svg .gnuplot .png .xml .html
+.PHONY: regress
 
 # Comment if you don't need statically linked.
 # This is only for the sample program!

figure4.dot

@@ -12,7 +12,7 @@ digraph {
 			labelloc="b";
 		}
 		subgraph cluster2 {
-			delegator [shape="record"; label="{ Connection Delegator }"];
+			delegator [shape="record"; label="{ connection delegator }"];
 			color="red";
 			label="sandboxed child";
 			labelloc="b";
@@ -21,6 +21,7 @@ digraph {
 	}
 	evil [label="FastCGI socket"];
 
+	delegator -> client [label="channel"];
 	delegator -> parser [label="FastCGI Session"];
 	parser -> client [label="validated pairs"];
 	evil -> delegator [label="FastCGI"];