Error fixing and new functionality

Some of the changes include
* Change the name from game.players to game.curr_id to better reflect on the actual purpose of the variable
* Added server timer which updates every 5 minutes
* Allowed access for web scripts that are from different origins than the host
* Added server Administration request which allows to watch over the games
* Added a better game ending
 - Server now frees the username once the game is complete
* Fixed the draw checking (typo...)