qmake|Windows|64-bit: Add 'win64' to CONFIG
Fixed|qmake|Debug|Windows: Typo in config_win32.pri related to rc options
Fixed|libdeng2|64-bit: Various implicit size_t to (u)int truncations made explicit
Merge branch 'ui-framework' of ssh://github.com/skyjake/Doomsday-Engine into ui-framework