change racket starter URL
Merge branch 'master' of github.com:ornicar/vindinium

* 'master' of github.com:ornicar/vindinium:
  Fix a memory leak of game models
  Introduce quality levels for degrading the rendering
  Distinct game state in GameStream to workaround duplicate game states
  Add back the "crashed" icon when an AI stopped responding
  Workaround for a Pixi.js bug (that will be fixed in upcoming version)
  Less blood particles
  Bugfix laggy transition between games in the flattened TV
  Add some notes for developing on the client side stack
fix BC with DB format