add time measurement, currently commented out
switch keys for statistic and debugwindow
rework run loop, #39
eclipse gprof enabled and disabled again, noisy .cproject file :/
advance DebugWindow to work asynchronous (regards draw/logic cycles),
#39
fix framerate to 125FPS, remove unused code, #39
fix bug SEGFAULT after calling #close on the game, introduced by #39
Merge pull request #40 from dixx/issue#39

Closes #39