Update Notes for 14th of September

Another small patch out for those of you playing over the weekend. This one contains:
- An end of level pop up to tell you when you've unlocked a new level (as well as the conditions to unlock the next level)
- A fix for the ammo indicator sometimes displaying incorrectly
- Improved enemy detection for claymore mines
- A potential fix for the falling through ground issue some players have reported
- Backup saves and a catch for if a save game gets corrupted by the game being closed during the save process