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
Fix old buildPanel problem
Comment

Building
Extensions for upgrading
Solved conflicts
Upload new images (stones, switch panel)
Facilitates tower and obstacle upgrading
Little fixes, refactor..
Revert "merge"

This reverts commit 3696042ae2c2f454ebc2c8808611fc087b872957.
Merge remote-tracking branch 'origin/master' into develvalcsa