changed the file upload to use streams

src/user.js

@@ -372,6 +372,15 @@ var config = require('../config.js'),
 		});
 	}
 
+	User.removeFriend = function(uid, friendid, callback) {
+		RDB.srem('user:'+uid+':friends', friendid, function(err, data){
+			if(err === null)
+				callback(data);
+			else
+				console.log(err);
+		});
+	}
+
 	User.exists = function(username, callback) {
 		User.get_uid_by_username(username, function(exists) {
 			exists = !!exists;