This makes it possible to use the same spec to build on Fedora. It drops any
chance of building on RHEL5, but I doubt that was possible anyway.
Change-Id: Ia956eb6416504e520962ec2f617e03b40ca18203
Tested on RHEL6.1 (with epel repository for dependencies).
make_release checks that that the version string in the .spec file is in
sync with the rest of the project and reminds the user to bump the
release string if necessary and to build/upload the RPM package.
Change-Id: I5f454f2a7301d1e0e120cb3c0e13a68d03bca917