Much of this patch from Vlad, with substantial rework by mk.
* */makefile.win32 : introduce mapdllnames.pl, api, and glue
* generator/CallbackGen.cs : rework namespacing for csc compilation
* generator/Parameters.cs : ditto
* generator/Signal.cs : ditto
* generator/SignalHandler.cs : ditto
* glue/win32dll.c : new dll construction source
* glib/Value.cs : new ushort ctor/cast operator
* gtk/Table.custom : comment this out until we add a default ctor tag
* gtk/ThreadNotify.cs : make ReadyEvent public
* sources/Gdk.metadata : mark a Parse() param as ref
svn path=/trunk/gtk-sharp/; revision=8590
