Changes made to the original 4.8.1-tdm64-2 install:

- Removed readme files.
- Removed the leftover __installer folder.
- Added OpemMP support.
- Added rm.exe from GCC 3.4.2.
- Added gdb32.exe and gdbserver32.exe from TDM-GCC 4.8.1-tdm-1 (x86).