Code freeze break request for yelp-xsl

[Shaun McCance <shaunm gnome org>]

https://bugzilla.gnome.org/show_bug.cgi?id=746550

Spans in TTML subtitles behave div-like in current browsers. The fix is
easy. This isn't a big deal for anything in GNOME, but there are build
tools for other stuff that are built on yelp-xsl. I'd like to get this
into 3.16 so it's in the next round of distros. I suppose I could push
it to 3.16.1 if it's a big deal.

--
Shaun