Update to move dropbox app key setting to common.js and will auto load client-side related scripts

lib/config.js

@@ -61,7 +61,6 @@ var twitter = config.twitter || false;
 var github = config.github || false;
 var dropbox = config.dropbox || false;
 var imgur = config.imgur || false;
-var googleDrive = config.googleDrive || false;
 
 function getserverurl() {
     var url = '';
@@ -112,6 +111,5 @@ module.exports = {
     twitter: twitter,
     github: github,
     dropbox: dropbox,
-    imgur: imgur,
-    googleDrive: googleDrive,
+    imgur: imgur
 };