added spiegel.tv
cleanup
use provided function to get JSON
tabs as spaces
[Spiegeltv] skip rtmp download to pass Travis test build
[Spiegeltv] remove the md5 field to pass Travis test build
[TagesschauIE] Add extractor for tagesschau.de (fixes #3049)
[TagesschauIE] Remove unused import
[TagesschauIE] Add note to 2nd _download_webpage
[TagesschauIE] Fix possible error if quality is not defined
[TeacherTubeIE] Add extractor for teachertube.com videos + classrooms (fixes #3046)
Merge remote-tracking branch 'pulpe/tagesschau'
[tagesschau] Add support for width/height
Merge branch 'master' of github.com:rg3/youtube-dl

Conflicts:
	youtube_dl/extractor/__init__.py
Merge remote-tracking branch 'pulpe/teachertube'

Conflicts:
	youtube_dl/extractor/__init__.py
Merge remote-tracking branch 'georgjaehnig/spiegeltv'
[teachertube] Add support for audios
[spiegeltv] Simplify and PEP8
[cnn] Improve thumbnail extraction
Credit @georgjaehnig for spiegeltv