fixes#1644
- Fixes bug in controller/frontend
- Created functional test for posts API to test for this bug
- Created unit tests for frontend controller
- Fixed a global variable leak in core/test/utils/fixtures/data-generator
that was leaking the DataGenerator globally
- Resolved issue that arose from fixing above bug
- changed cookieSession to session
- added session.regenerate for login and logout
- added bookshelf session store
- added session table to database
- added import for databaseVersion 001
- added grunt task test-api
- cleanup of gruntfile to start express when needed only
- moved api tests to functional tests
closes#1396
- moved core/test/unit/api* to core/test/integration/api/
- moved core/test/integration/model* to core/test/integration/model/
- moved core/test/unit/utils to core/test/utils
- moved core/test/unit/fixtures to core/test/utils/fixtures/
- changed gruntfile.js to execute api tests with target 'integration'
