Add FKTV extractor

Support for Fernsehkritik-TV (incl. Postecke)
Add FKTV extractor
[youtube] Don't search the flash player version for videos with age gate activated
[hotnewhiphop] Fix test case title
[francetv] Remove Pluzz test

Videos expire in 7 days
XHamsterIE: Fix support for new HD video url format and add test (closes PR #1443)
Clarify -i help (#1453)
Added Newgrounds support
Fixes test fail

Was unaware of --id being passed to test.
Changed file hash.
[newgrounds] simplify
Credit @Ruirize for newgrounds
[youtube] apply the fix for lists with number of videos multiple of _MAX_RESULTS to user extraction

Copied from the playlist extractor.
Merge pull request #1438 from rzhxeo/fktv

Add support for http://fernsehkritik.tv
[fktv] support videos splitted in any number of parts and some style changes
Unable to decrypt signature length 93 (fixes #1461)
Merge pull request #1464 from patrickslin/patch-7

Unable to decrypt signature length 93 (fixes #1461)
release 2013.09.20