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

spec/AdapterLoader.spec.js

@@ -45,6 +45,19 @@ describe("AdapterLoader", ()=>{
     done();
   });
 
+  it("should instantiate an adapter from npm module", (done) => {
+    var adapter = loadAdapter({
+      module: 'parse-server-fs-adapter'
+    });
+
+    expect(typeof adapter).toBe('object');
+    expect(typeof adapter.createFile).toBe('function');
+    expect(typeof adapter.deleteFile).toBe('function');
+    expect(typeof adapter.getFileData).toBe('function');
+    expect(typeof adapter.getFileLocation).toBe('function');
+    done();
+  });
+
   it("should instantiate an adapter from function/Class", (done) => {
     var adapter = loadAdapter({
       adapter: FilesAdapter