fix(core): update

test/test.ts

@@ -20,7 +20,7 @@ let testDb = new smartdata.SmartdataDb({
 });
 
 tap.test('should establish a connection to the rethink Db cluster', async () => {
-  await testDb.connect();
+  await testDb.init();
 });
 
 // =======================================

ts/smartdata.classes.db.ts

@@ -44,7 +44,7 @@ export class SmartdataDb {
   /**
    * connects to the database that was specified during instance creation
    */
-  async connect(): Promise<any> {
+  async init(): Promise<any> {
     let finalConnectionUrl = this.smartdataOptions.mongoDbUrl;
     if (this.smartdataOptions.mongoDbPass) {
       finalConnectionUrl = mongoHelpers.addPassword(