Merge branch 'master' of github.com:haiwen/seafile into 1.4
[client] Check password before starting download.
[web] Add translation.
update debian/rules to work on Debin unstable
remove some logs

* remove some log of seafile-controller
* remove seafileweb.log
Merge branch '1.4'
Merge branch 'master' of github.com:haiwen/seafile into 1.4
Add script to update the version number in MacOS