Roll version to rule out staging issue

Roll version to rule out staging issue

Behavior observed in the odlsli docker container suggests that it might
be picking up an old build of 0.1.0-SNAPSHOT version of sli/core.  We
have observed this problem before due to issues with the Nexus staging
plugin.  This change bumps the version of sli/core to 0.1.1-SNAPSHOT and
comments out the staging plugin from the sli/core pom.xml to make sure
that the current build is picked up.  There will be a corresponding
change in ccsdk/distribution to change which version of sli/core is used
in the odlsli container

Change-Id: Ie3c2b4ff66191748df14240a69a7d461fc0d4639
Issue-ID: CCSDK-69
Signed-off-by: Dan Timoney <dtimoney@att.com>