Log Message:
Update net/youtube-dl to youtube-dl-2015.08.09.
ok by wiz@.

pkgsrc changes:
o Install the fish completion file in the proper directory (thanks to wiz@ for
  noticing that)

Changes:
2015.08.09
 o [periscope] add extractor
 o [quickscope] add extractor
 o misc bug fixes and improvements

2015.08.06
 o misc bug fixes and improvements

2015.07.28
 o [bbcnews] add support for bbc.com/news
 o [dcn] add new extractor
 o [lecture2go] add new extractor
 o misc bug fixes and improvements

2015.07.21
 o [sportschau] add support for sportschau.de
 o [appleconnect] add new extractor
 o misc bug fixes and improvements

2015.07.18
 o [rdsca] new extractor
 o [myvi:embed] add extractor
 o misc bug fixes and improvements

2015.07.07
 o [gfycat] various fixes