Prepare to deploy widget-ms docker container in Rackspace

Restore hardcoded image name ep:1610-1 due to demo/boot
script file dependencies.
Store image and container names in settings file;
push and tag image for WMS at same time as portal and db.

Issue: PORTAL-30
Change-Id: I349bfb91676dda0b4f106c6cab784dc6e6cec647
Signed-off-by: Christopher Lott (cl778h) <clott@research.att.com>