Add an extractor for syfy.com

It uses theplatfrom.com, which has been updated to work with f4m manifests
Add a downloader for f4m manifests
[firsttv] Skip test
[yahoo] use unicode_literals
[xtube] use unicode_literals
[xtube] Fix uploader extraction
[cnn] Add an extractor for blogs (closes #2361)
[ndr] Replace 404 video test
[dropbox] replace not working test
Merge pull request #2372 from pulpe/dropbox_fix

[dropbox] replace not working test
[mtv] Improve title extraction
[gametrailers] Fix gametrailers test
[collegehumor, chilloutzone] changed description in tests
Merge pull request #2373 from pulpe/_description_fixes

[collegehumor, chilloutzone] changed description in tests
[ecapist] modernize and fix id property
[jadorecettepub] Remove unused import
[vesti] Add support for vesti.ru videos and live streams (Closes #2376)
release 2014.02.13
[vesti] Skip test 2 due to geo restrictions

At least that's how I interpret the error message "Просмотр вид��о ограничен в вашем регионе."
[vesti] Fix player regex (Closes #2382)