try to fix unencrypted file size if it doesn't look plausible

added simple test for getFileSize proxy

avatars should also work with encryption after pr #5332 was merged

added another test, if unencrypted size and encrypted size are equal we can also assume that something is wrong

Files sharing actions + navigation fixes

Prevent renaming/deleting mount points

Fixed permissions returned for mount points to not include update and
delete permissions.

Fixes #5291

Shows The Eye permanently in the Confirm Password field in Personal Settings

check if we are writing to user/files, otherwise skip encryption

ocs share api: add "received_from" and "received_from_displayname" field

Fix logout link HTML.

streamCopy() should return proper structure.

<a id="logout" href=/projects/owncloud/core/index.php?logout=true>

Callers of streamCopy() expect an array to be returned containing count and result.

Removed extra bkg color on file actions when row is selected/hovered on

Ajax loading is not supported yet for public files view.
This fix disabled the history API, ajax loading and ajax directory
switch in public mode until it is implemented properly.

Fixes #5328

Adding detection of aborted uploads for chunked uploads

Added missing "grid" class on external storage's table

Fixes Default Quota Style in User Management.