Merge the tip of origin/release/proposed/2019.2.0 into origin/release/2019.2.0

64df3213 Update docker images
7f4ce6dd Update cvp_sanity_checks to 2019.2.19
daa32d01 Update jenkins docker tag to 2019.2.19
f05ed986 Update ssh key for mkarpin
238aef53 Add aarefiev and efedorova to oscore devops team

Change-Id: I3e677654cea6b625b383262bd5aa836dc5e25f89