Changed keystone configuration description

Change-Id: Ic140619107a7d6cd7c7b0201087bcd288ab55f2e
Resolved issue with screens

Change-Id: I392c203a81ebc94d3110dedf9500e8e7c8dac7d2
Update image registration info

Change-Id: I4cca1440241b25787a7462bb46afc8ed83569d9a
Merge "Update image registration info" into release-0.2