Merge pull request #38 from elElmo/master

Splitting attack and fortify phase. Adding user dialog for moving armies.
Merge pull request #39 from elElmo/master

Rewrote dialog asset to be more user friendly
Merge pull request #40 from elElmo/master

Hotfix for threading issue with pygame's pump
Changing default launch to gui
Merge remote-tracking branch 'upstream/master'