Bug 1006219 - [marketplace-tests-gaia] Re-enable test_search_paid_app when price becomes visible

Although the price has not become visible, an additional hack has been added which allows the test to pass
Merge pull request #42 from bobsilverberg/fix_search_for_paid

Bug 1006219 - [marketplace-tests-gaia] Re-enable test_search_paid_app when price becomes visible