Created separate screen for seed mode
Made seed screen fully functional
Rearranged controls in seed screen
Rearranged seed screen again (added empty and span labels, so table
won't resize, when the other labels text changes)
Changed keyboard shortcuts for menu and seed stage
Improved keyboard shortcuts
Fixed level generation problem (in some cases, the goal could not be set
and the try to set it resulted in an infinite loop)
Improved keyboard handling a bit more
Finish stage now continues to the menu stage
P now also unpauses game
Tap to continue text is now only shown, when the tapping is enabled
(after 1.5 seconds)
improved tap label message
Added KeyPressEvent (from 32k.eu / vjoy)
Remove unnecessary runningTime and runningTimeSinceEnter (they were used
for key press flood protection ;) ) and implemented single key presses
with KeyPressEvent