add device
merge
add orientation
add score
merge
remove unused script
Merge remote-tracking branch 'origin/weapon' into sandbox
Merge branch 'sandbox' of https://github.com/milk-cocoa/ramiel-shooting into weapon

* 'sandbox' of https://github.com/milk-cocoa/ramiel-shooting:
  remove unused script
  add score
  add orientation
  add device
Fix fire bullet
Change bullet speed
Fix gameover
bullet selection
merge