enable the ability tu upload a trascript, aka subtitle, and make it translatable

[add transcript upload field to video publish form]

it would be able nice to upload a transcript of a video in format .srt, and that the transcript item be translatable by other users.

it is fairly simple to add a field to upload a simple file, an .srt for example by adding a FileField? to engage.py and with the something like the following in video_view.pt:

<div metal:use-macro="python:context.widget('Transcript',

mode='view')" />

There may be better ways to do this, but it occurs to me that ATVideo could be LinguaPlone? enabled, where the languages would corespond to subtitles. a transcript could be uploaded by any user. and when selecting, translate video users could be prompted to upload the translated transcript in a specific language, or an inline for to edit the subtitle text could be generated.

once the subtitles are in the page, future enhancments could could convert the srt to cmml, or other relevant formats. http://trac.annodex.net/browser/scripts/trunk/srt2cmml.py?rev=1179