fix format and use database.client

src/config.js

@@ -12,7 +12,7 @@ const LOGGER = require('@calzoneman/jsli')('config');
 
 var defaults = {
     database: {
-	client: "mysql",
+        client: "mysql",
         server: "localhost",
         port: 3306,
         database: "cytube3",

src/database.js

@@ -30,7 +30,7 @@ class Database {
     constructor(knexConfig = null) {
         if (knexConfig === null) {
             knexConfig = {
-                client: 'database',
+                client: Config.get('database.client'),
                 connection: {
                     host: Config.get('database.server'),
                     port: Config.get('database.port'),