Update Glyphicons font to resolve #10106

Workaround an old Android WebKit bug by switching to codepoints within the BMP.
Details: http://stackoverflow.com/questions/9241519/webkit-css-content-unicode-bug
Extra special thanks to @jankovarik for doing this update. <3
Source: https://www.dropbox.com/s/clh9y6lqtmj01l8/halflings_updated_for_android.zip
(As posted in #10106 (comment) )