Fixed single-player issues caused by implenting twoplayer

-Fixed single player trying to connect to a server
-Fixed single player paddle being controlled by AI
Added GameOver state, fixed bugs

-Added game over state that occurs when there are noe more boards to
play
-Fixed bug with player have controll over server paddle ( and not his own )
-Scores are now not displayed for remot player in single player games
-Fixed bug with screen becoming black in game over state
Improved console input

-Removed some useless output
-Made list of boards more readable by indenting each board and adding
caption
-Added source file name and line in front of each console output