6.10.0-rc1

List of changes since v6.10.0-beta3.

Fixed

• Added a command to clean up relations causing "Unknown relation type 0." exception (EZP-27254, #1979)

Changed

• [Composer] Remove lock file for now as it casues conflicts with 7.0 and is constantly out of date
• [Composer] Add composer.lock to .gitignore