[mtv] Improve detection of geoblocked videos
[spike] Add support for downloading the mobile version if the normal version is geoblocked
[spike] Add support for mobile urls
[collegehumor] Replace youtube test
[mtv] Transform the urls from the mobile version to get the best quality

And don't report a warning, just log a message, it allows to pass the test from Europe.
[gamekings] Modernize and update the test's description field
[ustream:channel] Update test's number of entries