Autofocus on search box

From Brett Cannon
Add speaker API

Allow to retrieve the list of speakers.
Add Benjamin to AUTHORS
Fix test failure with python 3.3
Fix browserid url prefix

In django-browserid 0.10 the "browserid" prefix was pulled into the
library's urlconf.
Fix page parameter on search page
Merge pull request #233 from burakguven/browserid-fix

Fix browserid url prefix
Add Burak Guven to AUTHORS
Merge pull request #234 from burakguven/search-fix

Fix page parameter on search page
correct HTTP header from Authentication to Authorization
Merge pull request #238 from willkg/api_auth_docs_thinko

correct HTTP header from Authentication to Authorization
Switch to new Amara embedder

This looks nicer and seems to fix the window.site problem we were
having.

Fixes #209
Update django version
Fix Persona login button
Fix django-browserid popup issue

django-browserid 0.10 used an ajax call to get some persona details from
richard. The problem with this is that it causes the Persona popup window
to kick up a popup warning.

This update fixes that.
Add category filter to videos API

Allow to retrieve the videos per category (using the category slug).
Merge pull request #241 from beenje/api

Add category filter to videos API
Update documentation regarding adding batches of videos

Fixes #207
Add ordering filter to videos API

Allow to retrieve videos ordered by fields title/recorded/added.
Merge pull request #243 from beenje/api

Add ordering filter to videos API