Merge changes from 2.3.2-rc

MC-15552: Magento 2.2.9 Publication

 (build 2.2.9.071)

MC-15624: Magento 2.1.18 Publication

 (build 2.1.18.019)

Merge remote-tracking branch 'publication/2.3.1-rc' into HEAD

MAGETWO-97699: Magento 2.2.8 Publication

 (build 2.2.8.025)

MAGETWO-97695: Magento 2.1.17 Publication

 (build 2.1.17.008)

Updated deprecation doc annotations

MAGETWO-95168: Magento 2.2.7 Publication

 (build 2.2.7.019)

MAGETWO-95579: Magento 2.1.16 Publication

 (build 2.1.16.005)

MAGETWO-94054: Magento 2.1.15 Publication

 (build 2.1.15.008)