This backports three recent changes of the TYPO3.Fluid package:
- Remove @license annotation from files (290f4f5)
- Simplify license header in PHP files (14bacba)
- Drop @author tags from source code (9c2e837)

This should not contain any functional change!

Change-Id: I9376dca4af78c4f0f82413011d115b8ad04634dd