Better logging with winston

src/index.js

@@ -1,8 +1,17 @@
+import winston                   from 'winston';
 import ParseServer           from './ParseServer';
 import { GCSAdapter }        from 'parse-server-gcs-adapter';
 import { S3Adapter }         from 'parse-server-s3-adapter';
 import { FileSystemAdapter } from 'parse-server-fs-adapter';
 
+if (process.env.VERBOSE || process.env.VERBOSE_PARSE_SERVER) {
+  winston.level = 'silly';
+}
+
+if (process.env.DEBUG || process.env.DEBUG_PARSE_SERVER) {
+  winston.level = 'debug';
+}
+
 // Factory function
 let _ParseServer = function(options) {
   let server = new ParseServer(options);