edX URL correction

vafleite commented on Apr 29

edX has been changed the subtitles URL. The URL remains almost the same
as cited #96 but the last parameter (language) doesn't exist anymore.
The new format is similar to that:

https://courses.edx.org/courses/UTAustinX/UT.6.01x/1T2014/xblock/i4x:;_;
_UTAustinX;_UT.6.01x;_video;_ef33fd03fe8b42d2a87d534610066a48/handler/tr
anscript/translation/en?videoId=EcEOGGmX8c8

Changing this line should fix the problem. As a temporary fix I changed
it to this:

subsUrls += [BASE_URL + regexpSubs.search(container).group(1) +
"/en?videoId=" + id
                     for id, container in
zip(video_id[-len(id_container):], id_container)]