Ver 2.2 Xelatex support for Korean and Hindi

I added xelatex PDF build for Korean and Hindi ver 2.2 branch.

Original pull request for master branch is here(https://github.com/qgis/QGIS-Documentation/pull/239),
and generated example Korean PDF files are here.
UserGuide: https://dl.dropboxusercontent.com/u/93823511/QGIS-2.2-UserGuide-ko.pdf
TrainingManual: https://dl.dropboxusercontent.com/u/93823511/QGIS-2.2-QGISTrainingManual-ko.pdf

Hi BJ Jang (@Qgis-Tr-kr),
Could you check above PDF files again ?

Thanks,