Merge branch 'ui'
Added encrypted passwords
correct bug of owner's login on SongDetailPage
Some fixes: nullpointer, comments, using UserInfo.equals
[SetScore] fixed scoring a distant music.
Commit 36.
[RemoveComment] fixed removing a comment on a distant music.
Add trash playlistcard
Merge branch 'master' of https://github.com/SharUTC/SharUTC
Merge branch 'master' into ui