Fix apps versioncheck

[encryption] fix redirectToErrorPage() call

Check which permissions are possible to re-share a file

readd sharing token to public template

LDAP Wizard: introduce configuration status indicator, fixes #5741

[encryption] preserve timestamps and etags during encryption/decryption

write encryption tmp files to the cache folder

necessary for https://github.com/owncloud/apps/pull/1476

Fix for smb4php fseek

The stream_fseek function must return a boolean which will be mapped
to 0 for success and -1 for failure for the caller.

This patch fixes stream_fseek of smb4php to also respect this
convention.

Since the encryption app is relying on fseek to detect whether a file is
encrypted by reading the last bit of data, this will fix #5023

DB: Set correct default value for numeric types

Add some more indexes to tables to improve db queries

LDAP Wizard: do not forget to set display name attributes for user and g...

Don't set a default value when there isn't a default specified

Added ffmpeg fallback when avconv is not available

Users groupadmindropdown

Conflicts:
	lib/private/preview/movies.php

Fix fatal error when trying to open a non existing public link

Files singledotdirs

instead of writing etmp files we write the dummy file to data/user/cache to avoid that etmp files show up in the users files list

Add unit tests for OC_API::mergeResponses and fix error with api returning incorrect status codes.

Don't double-slash filenames at the root.

Use dedicated OC_Image loader methods in previews

Fixes #5841

Before rendering breadcrumbs or the file list, the paths are now
normalized. This prevents the UI to show "." breadcrumbs in case the
path contains sections with "/./"

Fixes #5848

Now removing "/./" and trailing "/." from the paths when normalizing.