Remove unused and dead code.
Don't do 'unix' installs on the Mac.
Remove LIBLUA, since it's unnecessary.
Make cmake and qmake BUILD's the same.
Merge pull request #39 from ahmedcharles/liblua

Remove LIBLUA, since it's unnecessary.
Merge pull request #38 from ahmedcharles/unix_install

Don't do 'unix' installs on the Mac.
Merge pull request #37 from ahmedcharles/cmake

Make cmake and qmake BUILD's the same.
Merge pull request #36 from ahmedcharles/dead

Remove unused and dead code.
Rearrange some variables in src.pro.
Restrict the unix areas to unix, without Mac.
Add Mac specific LIBS and install.
Remove unnecessary \ at end of line.