AEPgb 0.89

a new AEPgb was released today :)

changes:
Fixed nullpointer exception when loading unknown files (retroK)
Changed menushortcuts (Strg-O Open, Strg-X Close) (retroK)
Sound channels 1-4 can be enabled or disabled seperately (retroK)
Sound frequency and buffer size can be changed (retroK)
Fixed some sound routines, most games should sound much better now (XTale)
Began work on Applet support, does not work yet (XTale)