added debian 7.7 support
debian 7.7 support in bootstrap, newer version of git
debian 7.7 support in bootstrap, create backports.list in case debian installed from netinst
Merge remote-tracking branch 'XTUPLE/master' into debian_7.7
cleaned up redundency and fixed merge conflicts
debian 7.7 support in bootstrap
Merge pull request #488 from zrichmond/debian_7.7

Debian 7.7 support to bootstrap