Renaming pos to origin.
Renaming "openMenu" to "toggleMenu"
Renaming ticks to frames internally.
Resizing test arena ratio to 16:9 from 3:4.
Renaming detectPlayerCollision, to detectCollision.
Fixing typo.
Correcting type.
Merge branch 'master' into gh-pages

* master:
  Correcting type.
  Fixing typo.
  Renaming detectPlayerCollision, to detectCollision.
  Resizing test arena ratio to 16:9 from 3:4.
  Renaming ticks to frames internally.
  Renaming "openMenu" to "toggleMenu"
  Renaming pos to origin.