modified UI of 'back to library' on some pages
[top nav] use 'hover' instead of 'click' to show group-list popup
[header] added 'triangle' to popups
improved popup triangles UI
[org] Change sys-org-info.html to sys-org-info-base.html
Merge branch '3.1'
[repo] fixed a bug for 'list_dir_more'
[file] Increase view count when size exceed limits in viewing shared file
Fix bug in viewing odt files in trash, and remove unused file
[i18n] Update po files
[org] use 'Settings' as tab name
[org] use 'Settings' as tab name at other pages
use new ellipsis for group names in top-grp-list-popup & group homepage
[repo] use icons for dirent download & share.
[api2] Return integer timestamp of event api
[fileupload] use 'autoUpload' to fix 'repeat upload' bug
[default-lib] Can not set encrypted library as default library
Do not show inactive user at pub-user page
Only show active user when share sth to others
[api2] Fix issue in python 2.6 when calling events