Version 0.9.1 - bugfix for initial beta

Added fix for fighter's ring. It now adds +2 to attack. Special thanks to Zombero for supplying the ips patch for this.
Tweaks to cave shuffle to mitigate a potential unwinnable situation.
Lowered Dragonlord's HP to make him beatable at level 18.
Tweaks to enemy zone randomization.
Tweaks to town shuffle.
Tweaks to enemy patterns.
Fixed rom version detection to work on overdump roms.
Fixed a bug in chest randomization where large gold chests were not as abundant as intended.
Some output filename tweaks. This should be more readable on everdrive.
Added more info to the README

Initial Beta release.

0.9.0

Minor README changes