Fixes #2053
On Windows and other systems, other encodings would break when trying to encode non-ASCII characters. Simply use UTF-8, like every sane system.
In particular, explicitly require NT before trying ADS, and do not try to parse process output that may be localized.
Conflicts: youtube_dl/PostProcessor.py
In player. URLs, the password warning is different.
Since the regexp is already overboarding and review pages have a distinct URL format (with non-trivial stuff after the ID), use a dedicated IE. Fixes #2106
[lynda] Add subtitles extraction