Give more time to things happen

Increase task polling timeout to 3 minutes
Increase sleep time to 3 seconds if a 404 is found when reading an
entity
Merge pull request #1491 from elyezer/timeout-increase

Give more time to things happen
Finish cleaning up module test_role_v2

Some tests in module `test_role_v2` are focused on filters, not roles. Create a
new module, `test_filter_v2`, and move those tests into the new module.
Significantly clean up the moved tests.