add nuke weapon
add inventory to ship
fix missing item bug
move player info into separate object
make InputHandler simpler; fix showMessage on pause; move respawn to Player
make InputHandler parse key names
fix whitespace
move graphical logic into new Canvas object
add drawItems to Game.Canvas
add Game.Arsenal to manage items
implement shooting objects from item queue
fix async module loading bug
Merge branch 'dev' into game
make missiles more useful
add mine weapon
add some items at game start
make more than missiles traverse wormholes
remove heat seeking from nukes
fix invincible pause message
update intro text