Disable/enable mods with checkboxes. Needs testing.

A lot of testing!
Do not merge disabled jar mods.
Handle the foo + foo.disabled jar mod corner case better.
Rearrange logiv for OneSix version change
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.
Launch an editor for the custom.json file. Also allow overriding of the system default editor
Use /usr/bin as default on linux
Don't use stuff that's new in 5.2 if we don't compile with that
Notify the user of any errors
Fix spelling mistake
Merge pull request #28 from 02JanDal/feature_editor

Button for opening an editor for the custom.json file