Several sources in this project are actually not compiled at all, but are
included from other files, so they don't appear in the master sources list.
Update the project accordingly, for consistency with the earlier versions of
MSVC.
If these files should appear in it, they need to be added to RICHTEXT_HDR
variable.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78338 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Get rid of version-specific MSVS project files, we can reuse the same projects
for all MSBuild-based versions, i.e. 2010, 2011 and 2013.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77008 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
