Fixes reference to ansible_distribution

Changed syntax using ansible_distribution for
installing the rdo repo.

Change-Id: Iab09b71788a1b97064616cfcdbaf7aacbff2b92a
Adds ANSI color codes to bash functions

Change-Id: I73928c988961f228d7c944d20830a55df03e6dcd
rdo/fedora: disable gpg_check for all non distribution repos

Change-Id: Ib085d600594726c731ed014fbbde344c0ae0bd13