-Make entries of the property sheets more like the property sheets of the
projects in the GTK+/Clutter stack, mainly changing CoglApiVersion to
ApiVersion, for better consistency, and update the corresponding projects
-Add command item in property sheets to build introspection files for Cogl
and Cogl Pango.
-Stop building and installing the cogl-msaa example, as it is something
that isn't really meant for Windows, and causes an internal compiler error
on Visual Studio 2010 x64 builds
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