Merge pull request #15 from PaulHiriluk/abramovpav-feature-units-find-path

Algorithm A* for units
create Controller for map and game, create StartEvent
Merge remote-tracking branch 'origin/dev' into dev

Conflicts:
	src/model/MapModel.java
	
write Controller for Mapand Game
add AboutEvent
add PauseEvent
start write method paintMap
class Cell & MapModel:
-delete algorithm A*
class Unit:
-add field prevStep
class MapModel:
-create map consist of class.Cell
-parse map from *.map
fixed bug in algorithm of creating cells based on information from
*.map;
write simple map render and write method printing map to the view panel;
add button "ScreenShot" for screen game(Create this button is a
professional work!);
add new Tab "Tools" to MenuBar and add menuItem(ScreenShot);
rewrite level_one.map;
create and write ExitEvent for Button("Exit");
create constants for Map and write default settings for size MainWindow
and size of map;
add ScreenShotEvent to original dev brench
just refactoring