* Sohu: default to download the best quality
Sohu: fix #53
Merge branch 'master' of https://github.com/soimort/you-get into HEAD

Conflicts:
	you_get/downloader/sohu.py
* Sina: fix the issue that can't get video id correctly
Sina: enhance regex; fix #55
Merge branch 'upstream' of https://github.com/twlz0ne/you-get

Conflicts:
	you_get/downloader/sohu.py
Sina: fix regression issue introduced by 8d0c066
ifeng: fix #57
Vimeo: default to download the best quality; fix #58
add support for NetEase, fix #59
add support for YouTube short URLs, fix #62
163: remove leading whitespace
YinYueTai: default to download the best quality; fix #63
Merge branch 'master' of https://github.com/soimort/you-get into upstream

Conflicts:
	you_get/downloader/sina.py
Merge branch 'upstream'