Re-organize img files + spawn tile + better player hit tile
Add Footprint
heroes with crowns
Merge branch 'better-game-dynamics' of github.com:ornicar/vindinium into better-game-dynamics

* 'better-game-dynamics' of github.com:ornicar/vindinium:
  Add Footprint
Add Ghosts
Implement the hero crown
Merge branch 'master' into better-game-dynamics
Adjust persistence parameters
add blast effect

+ need to fix a bug that some attack are not detected correctly
BloodParticles + more blood + more time for Ghost
Improve performance of mines render loop
Improve BloodParticles + rename Ghost to DeadBody
adjust rez point sprite position
Add GameIdStream
TV on main page + bot page
More blood persistance but less blood on hit
lighter footprint
fix position of blood explosion
kills definitely need more bloods
Use a default TV refreshRate for now