Revert "database: change db fields"

This reverts commit 0227ae1d96.

unclear why this doesn't work now

src/database.js

@@ -26,10 +26,10 @@ let gConnectionPool = null;
 
 const gDatabase = {
     hostname: '127.0.0.1',
-    user: 'root',
+    username: 'root',
     password: 'password',
     port: 3306,
-    database: 'box'
+    name: 'box'
 };
 
 async function initialize() {
@@ -85,7 +85,7 @@ async function query() {
     assert.notStrictEqual(gConnectionPool, null);
 
     return new Promise((resolve, reject) => {
-        const args = Array.prototype.slice.call(arguments);
+        let args = Array.prototype.slice.call(arguments);
 
         args.push(function queryCallback(error, result) {
             if (error) return reject(new BoxError(BoxError.DATABASE_ERROR, error, { code: error.code, sqlMessage: error.sqlMessage || null }));