Add FKTV extractor

Support for Fernsehkritik-TV (incl. Postecke)
Add FKTV extractor
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
[funnyordie] Fix video url extraction
Catch socket.error before IOError

Since python 2.6 it's a child class.
[youtube] add algo for length 91
Add an extractor for ebaumsworld.com (closes #1462)
release 2013.09.20.1
[southparkstudios] Fix mgid extraction