cleanup
starting state is automatically the first one (MAIN_MENU in our case)
moved some functionality over into the state
display menu again, create dummy functions for mouse and keyboard
transition to dummy gameplay state via "1"
Merge branch 'develop' into feature/issue/#14
move state-dependent stuff into states.lua for now
triggering draw() via the state
transitioning more stuff into state
dragging is back
keyboard scrolling is back
cleanup/repair
use 2 key for global transition to GAMEPLAY
added some debugging/exception handling for states
adding more keys
credits can be reached again via "3"
removed some files we probably won't need
reinstate "click to go to main menu" in credits
now we go to menu on any key (except the global ones)
put some stuff that we may want to use later out of the way