Various updater fixes

Updater tests for path utils
The updater now doesn't use splitpath on Windows (fixes problems with Windows XP)
Fix up paths for the OSX updater - should now install the updates into the right place
Fix translations install path - translation isntall and deploy should be fixed
Change TestParseScript path back to what it was.
LiteLoader support
Set permissions for the updater binary after updating it.
Don't hardcode stuff!!!
Merge branch 'feature_liteloader' of https://github.com/02JanDal/MultiMC5 into develop
Maybe break updater even more?
Litemod version info.
Merge https://github.com/robotbrain/MultiMC5 into develop
Fix various LiteLoader related bugs.