Build #569: Release v53.0.0

Build #568: Nightly v52.0.0-nightly.20181108 [ci skip]

Build #567: Nightly v52.0.0-nightly.20181106 [ci skip]

Build #566: Nightly v52.0.0-nightly.20181104 [ci skip]

Build #564: Release v52.0.0

Build #563: Nightly v51.0.0-nightly.20181101 [ci skip]

Build #562: Nightly v51.0.0-nightly.20181031 [ci skip]

Build #559: Nightly v51.0.0-nightly.20181026 [ci skip]

Build #558: Nightly v51.0.0-nightly.20181024 [ci skip]

Build #555: Nightly v51.0.0-nightly.20181019 [ci skip]