Fix some launch issues.
Update pack.json
Forgot a comma
Nice and valid
Support for updating LiteMods.
Merge pull request #8 from killjoy1221/test

merge test json.
Type element in mods array is optional
Implemented MD5 validating and made it optional.
Update README.md
Check classpath before loading libraries.

Should make it easier to load in Eclipse.
Put things that use Gson in their own class #6

I also fixed config saving... again.
Update build.gradle to reflect new name.
grgit-release