Change nexus-staging config

nexus-staging-maven-plugin interferes with Jenkins staging job, but
is needed for release-version and docker-version jobs.  Changed to
install nexus-staging-maven-plugin in a separate build profile that
is activated when altDeploymentRepository property is unset. This property
is set by the staging Jenkins job only.

Change-Id: I877e176229efd6bd5c08a6b83a2594cc4e57eebe
Issue-ID: CCSDK-1119
Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>
11 files changed