Fix for policy mapping of actions with capitals, plus general integration test fixes.

Fixed: Bug in policy mapping for actions with capital letters.
Added: New test to verify the above.
Fixed: httpHelper not properly detecting super startup.
Fixed: Two tests in integration/policies.test.js not properly verifying error responses.
Added: integration/policies.test.js line to mocha.opts to actually run its tests now that they work.

General note: mocha.opts only runs waterline tests. Partial fix here now that policies test properly.