Added methods OC_DB::insertIfNotExist() and OCP\DB::insertIfNotExist().
Added separate table for OC_VCategories and category/object (event/contact etc.) relations.
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Added post_deleteUser hook to VCategories. Added methods for adding/removing object/category relations.
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Merge branch 'master' of github.com:owncloud/core into vcategories_db
Updated category ajax files to use type instead of app and add callCheck.
Added ajax files for favorite category handling.
Updated category js for handling favorites and use post instead of get.