Packaging fixes for Fedora

These are a series of packaging fixes for Fedora. Currently Ceph and Fedora each have a different spec file for ceph. Both have their issues. These fixes are meant to get the upstream Ceph spec in line with Fedora packaging guidelines, so that Fedora can then replace their own spec with this upstream spec. This will fix a ton of bugs, to name a few:

https://bugzilla.redhat.com/show_bug.cgi?id=1109594
https://bugzilla.redhat.com/show_bug.cgi?id=1116546
https://bugzilla.redhat.com/show_bug.cgi?id=1116767
https://bugzilla.redhat.com/show_bug.cgi?id=1116614
https://bugzilla.redhat.com/show_bug.cgi?id=1108696