SoaW: Level 6

The Winter is coming. A new version of the game is up with the Ice Mountain level:

- slide and glide across the snow as you fight - unless you have a mount
- 3 new enemy units
- 2 new ice weapons
- 1 new boss (Crazy Santa throwing exploding presents)
- added music and sfx volume adjustment to the pause screen
- fixed Mom Books drops for altars to match the achievement unlock description
- lightning now shoots through metal shields
- adjusted mana cost and base damage for some magic wands
- Fire sword now has 100% burn chance
- spawning minions no longer give you mana via Warbreaker (this is to prevent getting infinite number of points in daily challenge)
- fixed a couple of translation related bugs