Add image support for base64 strings

presenters/society-controller.js

     });
   },
 
-  create_society: function (soc_name, admins, description, auth, complete) {
+  create_society: function (soc_name, admins, description, image, auth, complete) {
     var society_name = decodeURIComponent(soc_name);
     var soc_query = ("society:" + society_name).toLowerCase();
     admins = decodeURIComponent(admins).toLowerCase();
                   redis.hset(soc_query, "description", description);
                   redis.hset(soc_query, "users", admins_str);
                   redis.hset(soc_query, "events", JSON.stringify([]));
+                  redis.hset(soc_query, "image", image);
                   admins.map(function (admin_name) {
                     redis.hget("user:" + admin_name, "societies", function (err, result) {
                       if (result) {

routes/society/create-society.js

   var auth_key = req.body.auth || req.query.auth;
   var admins = req.body.admins || req.query.admins;
   var description = req.body.description || req.query.description;
+  var image = req.body.image || req.query.image || "";
 
   if (society_name && auth_key && admins && description) {
-    society_controller.create_society(society_name, admins, description, auth_key, function (result) {
+    society_controller.create_society(society_name, admins, description, image, auth_key, function (result) {
       res.send(result);
     });
   } else {