Patch 1.0.1: save game hotfix, balancing change and some glitch fixes

- introduced critical fix when broken save file would shut the game down
- fixed intimidating shout tooltip (it lasts 3 turns when above level 2, and not above level 3);
- fixed healing spell (now properly restores 5 energy on level 3+, and 10 energy on level 5)
- fixed healing spell tooltip
- fixed tutorial tooltip
- increased base enemy amount increase frequency by 33%: will now be 16 for easy, 13 for medium, 10 for hard (used to be 12 for easy, 10 for medium, 8 for hard)
- orc boss will no longer try to throw axes at the dead enemies