ENH: Removed addition of compiler support directory include option since the find_*_options scripts now include it automatically.

ENH: separate command from its arguments in the custom command.  This allows the generator on windows to change the slashes for just the command

seperated from Convert function

ENH: Generate compile lines for .m, .M, and .mm files (ObjC and ObjC++)

BUG: GCCXML_FLAGS found from find_gcc_options or find_mpro_options should have the trailing newline stripped from the string.

ENH: Updated generated dependencies since cable's installation directory now uses separate CxxTypes and WrapTclFacility subdirecories for includes.

ENH: Updated library finding code to handle new cable installation directory structure.  It now uses separate directories for CxxTypes and WrapTclFacility headers.

ENH: Proper dependencies between shared libraries now exist in the generated makefiles.  If a shared library links to another, the other will be built before the link is attempted.