TODO comment
Merge remote-tracking branch 'origin/master' into develmate
Comments on Game, BuildPanel, FieldPanel, Visualizer classes

I only commented the crucial parts. Further comments needed.
Creating mana bar
Changes in ManaProgressBar
Solved conflicts
ManaBar javítása
Solved conflict
Solved conflict
Fixes on mana bar
Solved conflict
Extensions for upgrading
Solved conflicts
Facilitates tower and obstacle upgrading
Little fixes, refactor..
Tiny changes related to the mana progress bar
Merge remote-tracking branch 'origin/master' into develmate
Tiny changes on upgrading buildings

Now shows the correct pictures for stones.