Locating mods on the classpath in dev should solve linked MC sources when debugging.
As well as loading deobfed mods.
Rewrote how arguments are handled in dev, so users can overwrite any defaults we provide.
Added basic Yggdrasil auth support. Passing in --username and --password arguments.
ONLY USE IF NECESSARY. Forge is NOT responsible for your login information.
and enable ModLauncher to use those instead. This allows all mods to load
within the scope of the game classloader, removing weird conflicts and
class discovery problems.