* 3.4:
Remove branch-version (keep them for contracts only)
[Serializer] fix decoding float XML attributes starting with 0
add missing dutch translations
[Validator] Add missing romanian translations
do not translate null placeholders or titles
* 3.4:
[FrameworkBundle] display actual target for error in AssetsInstallCommand
Remove patches for Doctrine bugs and deprecations
[DI][EventDispatcher] added contract for implementation