Fixed some mistakes in the CMake module for float types.
Fixed some debug messages.
Improved the CMake check for float/double format. (Intel compiler support)
Merge pull request #414 from TsudaKageyu/fix-floattest

Fixed some mistakes in the CMake module for float types.
Merge pull request #418 from TsudaKageyu/debug-msg

Fixed some debug messages.
Workaround for 64-bit MP4 atoms.
Removed an ambiguous cast from FileNameHandle to FileName.