Version updates for 4.15 stream

Required for
- https://git.eclipse.org/r/#/c/153080/
- https://git.eclipse.org/r/#/c/153081/
- https://git.eclipse.org/r/#/c/153082/
- https://git.eclipse.org/r/#/c/153083/


Change-Id: I37e7e2612bfd04b0f05f3e705efbcb726426c8f9
Signed-off-by: Karsten Thoms <karsten.thoms@itemis.de>
54 files changed