added tests for ABI stability to test suite
fix for non-importable module
Merge pull request #1009 from scopatz/abi-test

added tests for ABI stability to test suite
updating install script to replace describe
added cwd for git cmd
touching version.cc
touching cc.in
added an CLI argument to *not* do the hash update, making reinstalls faster
rm'd some ws
Merge branch 'gidden-sha' into develop