youtube-dl 2017.12.14

Core

• [postprocessor/xattr] Clarify NO_SPACE message (#14970)
• [downloader/http] Return actual download result from real_download (#14971)

Extractors

• [itv] Extract more subtitles and duration

• [itv] Improve extraction (#14944)

• [byutv] Add support for geo restricted videos

• [byutv] Fix extraction (#14966, #14967)

• [bbccouk] Fix extraction for 320k HLS streams
• [toutv] Add support for special video URLs (#14179)

• [discovery] Fix free videos extraction (#14157, #14954)
• [tvnow] Fix extraction (#7831)

• [nickelodeon:br] Add support for nickelodeon brazil websites (#14893)

• [nick] Improve extraction (#14876)
• [tbs] Fix extraction (#13658)