- Simplified Chinese translation added
- Character encoding is gdk
-- gdk covers more characters
-- gdk includes both Simplified and Traditional
-- best option I think, may need to work along with other locale
settings
- Other cleanup
-- Within each error, messages are sorted according to language code
-- More consistent formatting (8 spaces proceeding each translation)
-- jps removed as duplicate of jpn translation

This should be a good starting point. More refinement is appreciated,
and needed down the road.

English "containt" (sic) spelling fixes on ER_FK_NO_INDEX_{CHILD,PARENT}
resulting in mtr test case adjustments.

Edited/reviewed by Daniel Black