version 0.97 rc2: various fixes

version 0.97 rc2: various fixes

# enemies hit with hitpoints left disappeared (one pop too much...)
- removed contrast changes
# multiples appear at your position (begin level/just selected)
# when invulnerable multiples acted weird
# no more error at activation after APD off after running Nemesis
# saves correctly if own name ain't "nemesis" + some bytes smaller
# screen wasn't always entirely cleared after quit
* waits until all keys have been released after death
+ different bullets sizes will miss if they're too small
+ at level start "press F1 to save"-text will be displayed
* w3.shiar.org displayed at title screen, black bar behind version nr
# score to 0 when exit pressed at main menu
# no residual story-text in first frame of game
# game doesn't continue again after death (stack messed up)
# game over when lives<0 (didn't work in v0.96+)
* using some self-modifiing code (so it's smaller)