Break schemaController dependency. (#1901)

* 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

src/Routers/GlobalConfigRouter.js

@@ -24,9 +24,7 @@ export class GlobalConfigRouter extends PromiseRouter {
       return acc;
     }, {});
     let database = req.config.database.WithoutValidation();
-    return database.update('_GlobalConfig', {objectId: 1}, update, {upsert: true}).then(() => {
-      return Promise.resolve({ response: { result: true } });
-    });
+    return database.update('_GlobalConfig', {objectId: 1}, update, {upsert: true}).then(() => ({ response: { result: true } }));
   }
 
   mountRoutes() {