Starship Vega V0.0.5

Heh heh. Have fun with this one.

Changes over V0.0.4:

-a boss! he comes after you kill 20 enemies. Good luck killing him (hint: you can't)

-a cutscene! it took FOREVER so you'd better like it.

-pressing S brakes again, sorry for taking that out of the last revision.

-firing is now in bursts
#shooter