fixed reappearance of the move orders layer orientation problem
reinforcements appear at correct hex
reinforcements appear at correct hex
reinforcements are now blocked if their entry hex is occupied; arrival turn is adjusted so that units are available for orders (not just appearing) on the turn selected by the user.
added documentation comments
Merge branch 'master' of github.com:dptww1/BullRun
Merge branch 'master' of github.com:dptww1/BullRun

merge of new artwork