[org] Add org trial page
[org] Update org trial page
[org] Update payment page
[fileupload] redesigned it.
[file_view] file share: bug fix
fixed tests
enable office preview for cluster
Merge pull request #307 from haiwen/office

support office documents preview in cluster
[file_view] file share: bug fix
fixed tests
enable office preview for cluster
Add wmv preview support
Revert "[org] Update payment page"

This reverts commit 249a2addb5f5fb80be2320871c8c6c3b51fc5a84.
[org] Add subscribe button to payment
Removed file contributors, and use rpc to get file modifier and modification time
[auth] Add option to force org account register
[fileupload] small fix
[wiki] Use "Unknown" when there is no contributor
[useradmin] add "shared links" tab
[sysadmin] Refactor share links in user info page