Added os.__exit at end of CellProfiler
Added os.__exit at end of CellProfiler

to keep Linux from mystery-seg…faulting. Tighter control over JVM
monitor thread including join at end.

From CellProfiler/CellProfiler@d40f1f97a763946944195826685c5892a94a8b7e

CellProfiler/python-javabridge,jakirkham/python-javabridge,jakirkham/python-javabridge,CellProfiler/python-javabridge,jakirkham/python-javabridge,CellProfiler/python-javabridge,jakirkham/python-javabridge,CellProfiler/python-javabridge