Update ruby193-rubygem-gridster-rails to 0.1.5-2.el6

- Remove RHEL 7 from ruby(release) conditional (dcleal@redhat.com)
New package ruby193-rubygem-foreman_xen, version 0.0.1-1.el6
Update rubygem-gridster-rails to 0.1.5-2.fc19

- Remove RHEL 7 from ruby(release) conditional (dcleal@redhat.com)
New package rubygem-foreman_xen, version 0.0.1-1.fc19