Added slightly edited compilerMINGW.h as new file compilerGnuMake.h.
Added compilerGnuMake.cpp based on slightly edited compilerMINGW.cpp.
Removed class method GetCommandGenerator.
Added include of compilerGnuMake.h to compilergcc.cpp.
Changed m_Weight to 99 and added empty #ifndef CB_PRECOMP block.
Added registration of CompilerGnuMake.