Hooks aren't working across different users' filesystems, so update the mtime of the Shared folder for all shared item events

Merge commit 'refs/merge-requests/115' of git://gitorious.org/owncloud/owncloud into merge-requests/115

Conflicts:
	apps/files/templates/index.php

WARNING: may affect existing installations if display names included unallowed characters. Allowed are only a-zA-Z0-9._-@ This fix is however needed, because names with unallowed characters may cause conflicts

Contacts: Disable in-app import if encryption is enabled, and make an attempt of supporting IE uploads too. Can't test it though...

when scanning a folder that is a mountpoint, use the root of the mount for checking if a folder is writable instead of the folder

fixes a problem with browser plugins adding hidden inputs

add caldav and carddav files in their old place for backward compatibility - add rewriterule for caldav and carddav

ldap: unique index names for the database, fixes non-creating of indexes for the second table and potential issues in the app

Create a new OC_Share object instead of manually inserting rows when adding a user to a group share, prevents a couple of potential bugs