version 0.98 rc1: left enemies, laser upgrades, tail beam, 4 vessels

+ laser will upgrade as well when you reselect it
* 2nd can be used in main menu (wow!)
# altered variable storage space because of Nemesis grew beyond 6kb
# fixed armor bar display when at maximum
+ a few new enemies (asteroids) and remade 1st 4 levels; new pickup
+ 2 new big bosses
- torpedo since it was kinda useless
+ second icon now selects TAIL BEAM: bullet going backwards
# armor increase at the end of a level doesn't overflow armorbar
+ you can choose your own ship out of four vessel after NEW GAME!
+ enemies can appear at any x-position and move both left and right
+ move patterns given per enemy, not per level
* new (faster) enemy-move system; 10 basic moves (x2 left+right)