Add gtx to bscr help_commands

Version: 2014.0913.25
Update pre-commit hook to fail unless version.py is staged

Version: 2014.0913.26
Release 2014.1116

 - Added nvtool
 - Added version aware commit-msg, pre-commit
 - Added gtx to 'bscr help_commands

Version: 2014.1116.0