Hardcoding subscription-manager to use rhel-7-server-rpms causes
users building rhel6 with Satellite6 to fail. This setting cannot
be overridden with environment variables, therefore needs to be
smarter. Setting RHEL_MAJ_VER in the rhel/rhel7 environment fixes.
Change-Id: Ifbd88bc76ef8b38a739272ba6e045a12849d68df
Closes-Bug: 1404364
Updates the various operating system elements so that we
set the DISTRO_NAME variable for each distro.
This env var is used by bin/pkg-map to set the default
distribution name for package name mappings.
Change-Id: Ib4b05eb7191dd50d25799a0bac51fd15c01b74cb