unload modules upon stopping  I guess we won't find out what's wrong if we don't let it fail
Add .DS_Store to .gitignore
Fix broken OS X build with isnan and MAP_ANONYMOUS
Add include path for XQuartz on OS X
Merge pull request #558 from Bigpet/modunload

unload modules upon stopping
Merge pull request #562 from boxingcow/master

Fix OS X build