Fix rendering of decomposed Hangul
Review Request #128391 - Created July 6, 2016 and submitted
|Martin Tobias Holmedahl Sandsmark|
When looking backwards to combine into a character, it didn't take into
account characters with two column width. It also assumed that all
characters that needed to be combined were in the Mn unicode character
category, while the Hangul starting consonants are in the Lo category.
vs old: https://iskrembilen.com/screenshots/arabisk2.png