PM-Mapper CSIT image pulls enhancements

- Add nexus3.onap.org repository to external images
to avoid dockerhub pull limits.
- Remove repository from PM-Mapper image to force use
of image built earlier with maven.
.gitignore update.
- Add DMaaP healthcheck to setup.sh scripts

Issue-ID: DCAEGEN2-2796
Issue-ID: DCAEGEN2-2799
Change-Id: Ie98336b91b37d61767049d4857b016fb618e4e8e
Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
diff --git a/csit/.gitignore b/csit/.gitignore
index c8865c2..3a900d8 100644
--- a/csit/.gitignore
+++ b/csit/.gitignore
@@ -1,2 +1,3 @@
 env.properties
 archives/
+*.pyc