adding basic interfaces for the activities api
Merge branch 'appframework-master' into activities-api

Conflicts:
	lib/public/iservercontainer.php
initial implementation of activity manager
Fix disabled status after sending the email
Merge branch 'master' into activities-api
adding OC6 public API for activities
Hide files list header, when theres no files to see
Fixed app list right container to not overlap left container scrollbar

- Container widths in apps list now use pixels instead of em
- Container widths now match properly and rightcontainer doesn't overlap
  the scrollbar any more
Show (group) after groups in share dropdown
Added DAV client wrapper that support timeout values

Since SabreDAV does not support passing a timeout value to curl, this
commit adds a subclass for it that will set the timeout value to
curlRequest().
Added timeout value to WebDAV post setup check

Fixes #5357
Merge branch 'master' into activities-api
remove test code
Merge branch 'master' into activities-api

Conflicts:
	lib/private/server.php
Fix warning box in IE8

 * simulates a black transparent background on a blue pane
new option to add reshares to the result
adjust tests
add test for the reshare option
removing pointless calls on quoteIdentifier() - reason: name on $tableDiff doesn't exist and my design the name cannot be changed
adding PHPDoc
split up reset()['path'] to make it compatible with older PHP versions