Baidu: fix #242
Update youtube.py

No longer works on VEVO encoded videos such as http://www.youtube.com/watch?v=3O1_3zBUKM8

This more general regular expression fixes it.
Sohu: Fix vid get error
Merge branch 'fix-baidu-issue-242' of https://github.com/twlz0ne/you-get into twlz0ne-fix-baidu-issue-242
Baidu: fix download link from outside mainland China