#2386, korean translation update
#2368, pt.yml update
#2329, swedish lang update
Merged r2178 from trunk.
Fixes a JS error on context_menu with IE (#2390).
Backported r2171 from trunk.
Backported r2170 from trunk.
Merged r2168 and r2169 from trunk.
Merged r2143 and r2144 from trunk.
Merged r1930 from trunk.
