Support for calling functions with PASCAL and REGISTER calling conventions on x86 Windows/Linux.
Also changed indentation to be more consistent throughout the (adjusted) files.
Fixed THISCALL/FASTCALL closures and added basic support for PASCAL/REGISTER closures.
Determine whether register arguments (THISCALL/FASTCALL/REGISTER) are really passed via register to closures. Use stack if not.
Merge pull request #132 from nielsAD/master

Pascal and Register calling convention support on x86