improve twitter message
minor refactorings
12.2.6 project converter
12.2.6 breaking changes

http://www.expandframework.com/forum/6-bugs/3238-error-rebuilding-from-sources-122514.html#3244
installation in gac was failing (cherry picked from commit 3ea992d41936092be27d5ae9e6c6aa7a18b8c668)

http://www.expandframework.com/forum/6-bugs/3164-installer-on-win8.html#3245