Install python2-systemd on Arch git installs
Install systemd-python in Fedora git installs
Update changes log
It should be a new change log section
Allow cloning from Salt's git repository using HTTPS. Fixes #475.

The reason why HTTPS is not the preferred protocol is because not all
systems(specially the older ones) know anything about GitHub's
certificates.
Update changes log
Bump version for stable release.
If using the default git clone URL, also update it to use HTTPS if the flag is passed.
Merge branch 'develop' into stable for v2014.10.28 release