Added entry for the "cgitb" module docs.

Doc/Makefile.deps

@@ -152,6 +152,7 @@ LIBFILES= $(MANSTYLES) $(INDEXSTYLES) $(COMMONTEX) \
 	lib/libpdb.tex \
 	lib/libprofile.tex \
 	lib/libcgi.tex \
+	lib/libcgitb.tex \
 	lib/liburllib.tex \
 	lib/liburllib2.tex \
 	lib/libhttplib.tex \

Doc/lib/lib.tex

@@ -195,6 +195,7 @@ and how to embed it in other applications.
 \input{internet}                % Internet Protocols
 \input{libwebbrowser}
 \input{libcgi}
+\input{libcgitb}
 \input{liburllib}
 \input{liburllib2}
 \input{libhttplib}