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
...