fix lib var name

git-svn-id: https://svn.salilab.org/imp/trunk@16812 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
pass environment through cmake imppy.sh

git-svn-id: https://svn.salilab.org/imp/trunk@16813 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
respect executable bits on files when reindenting

git-svn-id: https://svn.salilab.org/imp/trunk@16814 e91f8c7b-0e32-4433-a9ac-4502d39a4eab