Get the saved font using the fontSelector defined in mw.webfonts.setup

Also make sure that correct language is passed to the getFont
It was wrong in current version - UI language was passed always
(introduced in a refactoring to avoid code duplication for content
and ui language- commit: 98bb1c200c8c8fe89a2b7ae1442e2354c6a48266 )

Change-Id: I62860f9d62538915628ad21e5d904e56bdcc9430
Merge "Get the saved font using the fontSelector defined in mw.webfonts.setup"