Feature/10228 rhel7 rpm depends

This was originally [trac #10228](http://trac.mantidproject.org/mantid/ticket/10228)

Tester: ISIS required a test version of Mantid for RHEL7 in short order. To facilitate this a mantidlibs-paraview rpm has been created and placed [here](http://files.mantidproject.org/kits/el7/beta/). A repo for el7 is still in the process of being created. The installation will also require the current testing mantid [copr repo](https://copr.fedoraproject.org/coprs/sic/mantid/repo/epel-7/sic-mantid-epel-7.repo).