added big ship images and renamed the small ship images
removed NAME message, added PLAYER message for the name and the ship type
player actor now has a subtype which determines mass, polygon, size and health
client now has ship type which determines bullet shoot cooldown time; player actor is now initialized with a subtype
updated as per the removal of the NAME message
actor now has a subtype which determines the images used by the actor
new images are being loaded; initial dialog now has a ship chooser interface and a start button; the callback passed to it now accepts parameters for the name and ship type
updated client as per the new message type and initial dialog callback