let admin specify timezone for log file entries

OC_App: Cache list of enabled apps

adding check isDeletable() on $sourcePath

fix upload to /Shared

updating a existing large file creates new file chunks. Therefore createFile() needs to check not only if we can write to the parent folder but also if we can update the existing file"

If a existing file in Shared/ with update permissions gets updated we need to write the .part file to a different place because we can't create new files in the Shared folder

Fixing broken chunked upload due to #4974

Remove the exception catch in OC_Config, this should be handled by a higher layer

Fix trash bin button

Fix new user avatar. Ref#5166

Added isPublic flag in files_sharing template

File conflicts dialog fixes

To make it possible for apps to find out whether they are running in
public mode, the flag "isPublic" will now be present in the DOM.

This is required to disable the editor app in public mode to fix #5059

OC6 Apache Authentication

Sharing dropdown bug fixes

Fixing l10n master 2

Fix breadcrumb to reinit dnd after ajax nav #5064

When clicking on an autocomplete result in the sharing dropdown,
it will mistakenly be detected as being clicked outside and would
trigger the sharing dropdown closing.

This fix adds a check to detect clicks inside the autocomplete and
prevent closing the dropdown in that case.

This fixes #4142

Fixed the sharing notification checkbox label in the file sharing
dropdown, which makes it possible to click on the label directly.

When clicking on a link that points to "#" in the sharing dropdown, and
the current view is scrolled down, the browser will scroll the page up
to the top (anchor behavior).

This fix cancels the click event when clicking on "unshare" link or
"show crud" link.

correctly expire cache if version file changed. 

error handling added in case file_put_contents is failing