- jace::destroyVm() and jace::detach() were crashing if the jvm was shut down; fixed. - jace::isRunning() was not thread-safe; fixed.
- jace::destroyVm() and jace::detach() were crashing if the jvm was shut down; fixed.
- jace::isRunning() was not thread-safe; fixed.

toonetown/jace-oat,toonetown/jace-oat,toonetown/jace-oat