Changelog update for 1.1.0 (#1090)
Changelog update for 1.1.0 (#1090)

* Update changelog for 1.1.0

* Some review fixes.

AlCutter/trillian,Martin2112/trillian,gdbelvin/trillian,daviddrysdale/trillian,RJPercival/trillian,AlCutter/trillian,daviddrysdale/trillian,Martin2112/trillian,google/trillian,gdbelvin/trillian,RJPercival/trillian,daviddrysdale/trillian,Martin2112/trillian,google/trillian,gdbelvin/trillian