5.15.0

• New: it is now possible to dump all of a content's languages when generating content/create and content/update migrations. In order to do so, pass --lang=all on the command line

• Fixed: generating content/create and content/update migrations would fail with eZPlatform 1 and later for any contents with non-null ezbinaryfile and ezmedia fields

• Fixed: allow usage of shorthand notation when setting references in file migration steps

• Improved: reduced the amount of test infrastructure setup code by relying on an external tool: https://github.com/tanoconsulting/euts