More trimming
Merge branch 'appframework-master' into vcategories_public
OC_VCategories=>OC\Tags. Public interface + getter in server container
Merge branch 'appframework-master' into vcategories_public

Conflicts:
	lib/server.php
fixing namespaces and rename hasCategory to hasTag
Updated method names and added a few more tests.
Add another test.
Added more error checking in add()
Forgot to return false if add() didn't add anything.
Use fetchOne() instead of numRows() when doing a COUNT(*).
Moar tests.
More trimming
OC_VCategories=>OC\Tags. Public interface + getter in server container
fixing namespaces and rename hasCategory to hasTag
Updated method names and added a few more tests.
Add another test.
Added more error checking in add()
Forgot to return false if add() didn't add anything.
Use fetchOne() instead of numRows() when doing a COUNT(*).
Moar tests.