Add rhel condition for django17 patch.
Change-Id: Id07b1db2e67b402292cb20232d0ad6efbff9a28f
Related-Bug: #
1544491
Related-Bug: #
1538051
cobbler rebuild for centos7 Liberty
* sources taken from epel7
Change-Id: I8229a316b6188439cb5f7e94209f6440c5405808
Related-Bug: #
1500808