Changelog, update for 1.1 release

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
RELEASE: 1.1.git for master

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
MAINTAINERS: add 1.1, remove 0.10

If someone else wants to maintain a old release, please contact us

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>