version 0.6: logo, bottom stats bar, 5 random levels

version 0.6: logo, bottom stats bar, 5 random levels

* play field increased to full screen instead of 3/4
+ bottom eight lines used for score (etc) display
- no more solid levels, enemies are placed at random
+ enemies appear every x turns (depends on level)
# fixed bullets so they don't disappear at 3/4 of the screen
* A LOT of optimizations both in speed and size!!
+ enemy type, frequency, and number specified per level
+ bottom score bar displays score, lives and icons (to be used later)
* smarter enemy handling (so enemies have different sizes)
+ bottom bar divided from playing field by a horizontal line
+ five levels (and five enemies) made
# game vars reset at start and game over
+ NEMESIS LOGO displayed at startup!! (also, program grew 350bytes ):
+ version/credit-string displayed below logo: v0.6.820 by shiar (ICQ#)