MCInstance Loader

Feature changes and fixes

• Made the confirm button display a downloading text on the optional resources page (untested).
• Added the translation for the previous text.
• Fixed the version number being incorrect in the previous build (which broke the update checker)
• Made IOExceptions try again once, after 1 second. This should fix (or at least negate) the Curseforge launcher breaking the mod by doing weird stuff with the jar files.

Technical changes

• Reorganized certain functions
• Rewrote some function comments to be javadocs instead.
• Cleaned up the code base a little
• Bumped the version number to 2.2