Refactor logging to provide common logger from LoggerAdapter (#2478)

* Refactor logging to provide common logger from LoggerAdapter

Move logger logic de WinstonLoggerAdapter

Further improvements in configuration

Use logger instead of getLogger

- Removes PLog module

Reverts name changes

nits

* Adds additional logging levels as requirements

* Adds tests for logging configuration

* removes flaky test

* investigate...

* further investigation

* Adds silent option to disable console output

* Restores logs with VERBOSE in tests

* Expose controller instead of adapter, reduces method requirements for adapter

* Shuffles initializations around

* Fix doc

* Load cloudCode last to make sure the logger is available

* Adds test to make sure we can load an adapter from npm module

* extract defaults

* Adds defaultMongoURI to defaults

* fix defaults values

* Proper error for PG failures

* Disable flaky test

src/Adapters/Files/GridStoreAdapter.js

@@ -8,14 +8,13 @@
 
 import { MongoClient, GridStore, Db} from 'mongodb';
 import { FilesAdapter }              from './FilesAdapter';
-
-const DefaultMongoURI = 'mongodb://localhost:27017/parse';
+import defaults                      from '../../defaults';
 
 export class GridStoreAdapter extends FilesAdapter {
   _databaseURI: string;
   _connectionPromise: Promise<Db>;
 
-  constructor(mongoDatabaseURI = DefaultMongoURI) {
+  constructor(mongoDatabaseURI = defaults.DefaultMongoURI) {
     super();
     this._databaseURI = mongoDatabaseURI;
     this._connect();