autosave every 3 minutes

we  have just uploaded a new patch for all three operating systems (windows, mac, linux). there was an issue with extreme lagging and resulting bugs on not so powerful devices.  this was caused by our autosave system: the game was saved after every click. we have changed this to every three minutes. a save icon hasn't been implemented yet, but we will provide another patch next week. let us know if the game runs smoothly on your computer now. (owlycrow[at]gmail[dot]com)