add subtitle in config file and show it in header next to instance name

src/common/header.js

@@ -23,13 +23,14 @@ import React from 'react';
 import { Col, Button } from 'react-bootstrap';
 import { Hidden } from 'react-grid-system'
 import Icon from './icon';
+import config from '../config';
 
 class Header extends React.Component {
   render() {
     return (
       <header className="app-header">
         <Col xs={{span: 10}} sm={{span: 8, offset: 2}}>
-          <h1>VILLASweb</h1>
+          <h1>{config.instance} - {config.subtitle}</h1>
         </Col>
         <Hidden sm md lg xl>
           <Col xs={2} style={{ paddingLeft: 'auto', paddingRight: 0 }}>

src/config.js

@@ -2,10 +2,11 @@
 const config = {
     publicPathBase: 'public/',
     instance: 'VILLASweb',
+    subtitle: 'ACS',
     admin: {
-      name: 'Institute for Automation of Complex Power Systems, RWTH Aachen University, Germany',
+      name: 'Institute for Automation of Complex Power Systems (ACS), RWTH Aachen University, Germany',
       mail: 'stvogel@eonerc.rwth-aachen.de'
     }
-}
+};
 
 export default config