webpage.
I added the parameter webpage, so now it's similar to the way automatic
captions are handled. This is an improvement needed for websites like
TED.
The 'Content-Type' header must be set for disabling the family filter.
The 'flashversion' cookie is only needed for AnyClip videos.
Added tests for standard metacafe videos and for age-restricted videos.
Also set the 'age_limit' field.
confirmed that this is indeed the first 10241 (we went off by one with
byte range 0-10240) of the full, playing mp4, so they probably
reencoded or something
This is suboptimal, but at least this way we will need to look at the logs
only to check for network errors that happen too often, instead of
parsing a ton of lines each time to see if there is some true test failing