* generator/ClassBase.cs (GenSignals): remove doc comment param
* generator/GenBase.cs (CreateWriter): alter generated file comment
* generator/InterfaceGen.cs (CreateWriter): remove doc comments
* generator/ObjectGen.cs (Generate): use new GenSignals sig
* generator/Signal.cs : make signal marshalers internal and remove
doc comments.
* generator/SignalHandler.cs : make signal marshalers internal and remove
doc comments.
* gnome/CanvasProxy.cs : use Gnome.voidObjectSignal since the gtk one is
inaccessible now.
svn path=/trunk/gtk-sharp/; revision=14385