Fix web updater 

Debounce heartbeat ajax calls to lower the number of requests

chunk the cleaning up of shared locks

migrate deprecated jQuery 1.x functions

Update 3rdparty to remove unneeded files

SharedStorage to new sharing code + cleanup

When calling file_put_contents clear the checksum

Add loadAdditionalScripts events to admin and personal settings

Move \OC\Preview to PSR-4

In case of fatal php errors and other unhandled exceptions no html er…

preserve information if it is a rename operation or not

Fix conditional check in MySQL setup

Move \OC\Mail to PSR-4

Add option to hide hidden files

Move the group dummy backend to test

init users mount point before recovery

App settings screen accessibility fixes

Move \OC\Diagnostics to PSR-4

remember email when setting expiration date

Always add activities for comments to the stream

Fixes #23782 and #23783

If the file scanner detects a changed file we clear the checksum while
we update the cache.

* Unit test added

access to his files

add checkbox to toggle show/hide hidden files

persist show hidden setting

fix settings menu layout

test ApiController::showHiddenFiles

don't show hidden files by default

Store config in Backbone model and inject it into FileList

Filter files only temporarily when rending the file list

Fix file rename validation

Fix gitignore for core/vendor

Move \OC\Console to PSR-4

Introduce isReadyForUser and verify in file transfer ownership 

The dummy backend is only used for testing and should thus reside in
tests.

Fix displayname for initial calendars and address books