Update server.js

Eliminate requirement to CD into project directory prior to running `npm start` or `node server.js`.

server.js

@@ -14,6 +14,8 @@ app.use('/', expressStaticGzip(`${__dirname}/build`, {
 	index           : false
 }));
 
+process.chdir(__dirname);
+
 //app.use(express.static(`${__dirname}/build`));
 app.use(require('body-parser').json({ limit: '25mb' }));
 app.use(require('cookie-parser')());