FIX: Added specialisation for uint64 type required to compile on VC++ 64 bit.
FIX: Added specialisation for uint64 type required to compile on VC++ 64 bit.

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two