In-Dev Update: v0.09a;"Your argument is invalid". So we better find it!

Yep, you heard good. Addon finding, and invalid addondata search.
I'm happy to commit this because already alot of people use this,
without the use of github.
Updates:
-New Function:
API:FindAddon
Updated the GenerateAddon and Mount Addon files. From now on, they'll
only accept valid addon datas.