Added a utility class to parse the Minecraft JSON blob containing the dependencies (1.6).
Fixes an issue with newer versions of the joined.exc file processing. Made it more robust so it should work with older and newer versions.
Added parsing of MC JSON file and adding of dependencies contained therein.
Fixed downloading the 1.6 client
Now uses FML.json instead of Mojang JSON due to Forge dependencies
Made parsing of MC info json more robust (ignores incorrect dates)