* Fixing #1900 JS SDK file upload
JS SDK file upload uses req.body._ContentType to specify the upload content type
* Fixing import statements
* Dont clear the cache just delete the new entry that the test added.
* adding E2E test for _ContentType support
* Use adapter.count
* use adapter.upsertOneObject
* Use adapter.deleteObjectsByQuery
* Use adapter.find
* use adapter.find
* Update tests to avoid mongoFind
* Fix a test to not use mongoFind
* Fix a test to not use mongoFind
* remove some mongoFind
* Remove some mongoFind
* Remove some mongoFind
* Remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* remove more mongoFind
* Restore update ios device token with duplicate device token to original
* remove a mongoFind
* remove a mongoFind
* formatting
* formatting
* remove a mongoFind
* remove a mongoFind
* remove a mongoFind
* kill mongoFind
* Fix tests
* Fix tests
* fix syntax
* Fix test
It's assumed that when push is available, the pushHandler is used and data is saved in _PushStatus.
This allows Parse Dashboard push history to be enabled: ParsePlatform/parse-dashboard#378
* Break dependency on MongoCollection for updateMany
* Move transformWhere usage into MongoTransform
* Pass parse schema into transformUpdate
* break dependency on schemaController
* remove schema parameter
* move key name validation up one level
* Move validation out of mongo adapter
* Move validation into Parse Server and transformUpdate in Mongo Adapter
* Update mongo adapter
* Use adapter API
* use and fix mongo adapter api
* Remove/rename stuff
* Kill transform in DBController
* better imports for transform
* Tidy ConfigRouter
* Remove schemaController in more places
* Remove comment