Less errors when target not selected 
Couldn't fix Windows background problem...
Merge pull request #22 from radkokotev/good_gui

Heuristics + Good Gui + Enhanced Alpha-Beta and Minimax + Better MonteCarlo
Heuristics test now fixed
surviving is now possible
Updated the path of the file
File import fixed
Merge resolved
some more problems tested
Problems added, GUI model checks or Ko correctly