pass extra compile args from setup.py and choose compiler, GNU by default
remove unused imports
change default compiler
add comment line
Update setup_with_cmake.py

make the specification of the compiler a bit more user friendly
Merge pull request #51 from pele-python/cmake_build

pass extra compile args from setup.py and set compiler env
added command line compiler flag
add bracket to cmake setup
Merge remote-tracking branch 'origin/master' into prob_combined_moves