Sandbox rework testing: more admin panel tests
Take host from db query string portion in postgres backup
Sandbox rework testing: check mysql backup exit code
Sandbox rework testing: check postgres backup exit code
Add functional tests for reST wiki processor
Sandbox rework testing: add some coverage of the admin panels
Sandbox rework testing: return actual file written
Exclude more common pylib locations from coverage
Merge remainder of Shane's patch on #8184
Sandbox rework testing: move the database backup test into the functional tests