V 2.7 is out!

The following levels have changed:
- 3 17 decoration added to the steel wall
- 4 04 backroute fixed (wooden pillar removed)
- 4 05 decoration added (in form of L2 cavelem torches)
- 4 09 backroute fixed (OWW extended)
- 4 13 backroute fixed (shredder added)
- 4 16 slight visual error fixed