feat: size > 1 support for true tile overlay

fix: Debugging 1.1 compatibility

fix: Support OS/2 JVM mouse clicks with isMetaDown

refactor: Fixed obj/spell options not returning early, cleaning up co…

…de and reordering args

fix: Java 1.4 compatibility - apparently getenv was removed for a sho…

…rt while

chore: Change back to groovy for better build times, warnings still r…

…esolved