[TASK] NEWS.txt thanks to all contributors for merge number 10.000

Change-Id: Iac334745b537a15af9291cd05917a38a9e4eaf95
Releases: 6.1
Reviewed-on: https://review.typo3.org/19688
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring
Reviewed-by: Felix Kopp
Tested-by: Felix Kopp
Reviewed-by: Philipp Gampe
Tested-by: Philipp Gampe
Reviewed-by: Magdalena Leichsenring
Tested-by: Magdalena Leichsenring
Reviewed-by: Alexander Opitz
Tested-by: Alexander Opitz
Reviewed-by: Benjamin Mack
Tested-by: Benjamin Mack
Reviewed-by: Nicole Cordes
Tested-by: Nicole Cordes
Reviewed-by: Steffen Ritter
Tested-by: Steffen Ritter