Add a mechanism to try the database migration on a copy of the tables before running it on the "real" data

fix empty file handling option

replace $ by \$

Scrutinizer cleanup

move Help section from controls bar to sidebar

drop allowZIPdownload and maxZIPSize as options

Design details

Automatically Rotate Avatar based on exif data

add share index

cleanup encryption code, improved return codes

Improve aligment of file size

fully translatable user_webdav

* added parameters for humanFileSize to trigger that behaviour
* add unit tests for that

make reshare settings foldable

LDAP: set filter mode to raw, so filters will not be changed and broken after upgrade from oc5, when visiting the LDAP settings and opening filter tabs

get the correct version number for compare -.-

bump version and don't overwrite values on next update if not necessary

simpler and better readable assignment