bugfix: correct gcc versions for float-conversion (it was introduced in GCC >= 4.9)
bugfix: correct gcc versions for float-conversion (it was introduced in GCC >= 4.9)

BerlinUnited/NaoTH,BerlinUnited/NaoTH,BerlinUnited/NaoTH,BerlinUnited/NaoTH,BerlinUnited/NaoTH,BerlinUnited/NaoTH,BerlinUnited/NaoTH