Merge pull request #23 from zhuowei/jiayongtranslation

Added a Simplified Chinese translation by jiayong620
Update README.md
Code cleanup.
Added Korean translation by chaos_land
Bumped version to 20/1.6.3
Disabled progaurd
Code cleanup.
Code cleanup.
Updated Korean translation.

ChaosLand fixed encoding and mistranslations for Korean translation.
Added French translation by g34pard.
Added Slovak translation by Dexter01
Ignore __MACOSX folder because patching of Chiselled fails otherwise