content views - ui - adding tests for filters and filter rules controllers

This is an initial commit containing tests for the UI filters
and filter rules controllers.  This does not include tests for the
permission checks that are typically performed on the controllers.
That will be addressed in a separate commit.
content views - ui - add permission tests for filters and filter rules controllers

This commit adds the typical permission tests for the filters and filter
rules controllers.  For now, these are being done with rspec, but can
be moved to minitest in the future, if we decide to port the permissions
tests.
content views - ui tests - chgs to address issues when running all

The main purpose of this commit is to address test
failures when running all tests together using 'rake minitest'.

A few of the changes include:
1. add/modify fixtures for filters, filter rules,
   definition, definition product, definition repositories...etc
2. update fixtures to include more details for a redhat product
   (so could work w/ multiple products)
3. update tests to use the fixtures
4. split out setup to setup/before.suite
...
content views - ui - address test failures during rails32 and ruby193

The tests passed in rails3.0 with ruby1.8.7; however, a couple
of failures were observed in the travis runs on rails3.2 and
ruby 1.9.3.  This commit contains a few minor changes that work
in those environments locally.
content views - fix test failing in rails32
Merge pull request #1814 from bbuckingham/fork-content-filters

content views - ui - adding tests for filters and filter rules controllers