add korean translation
Merge pull request #21 from battlej/master

add korean translation
added Korean translation, Firefox 22 compat fix, version set to 1.7
Update README.textile

corrected 1.7 release date
Add 'Add picture from clipboard' toolbar button.
Fix missing of the cancel button when opened from the toolbar.
Fix XXX is not defined errors.
Disable the toolbar button in comment form.
Add default size option to the thumbnail macro template.
Refactoring of toolbar button.