Update AAI instructions

The AAI instructions were using old variables resulting in some
execution errors. This change removes that old variables and
updates the methods required for the service.

Change-Id: I14f8e598eb8a5fd915b63135c1145ea25f6bcad0
Signed-off-by: Victor Morales <victor.morales@intel.com>
Issue-ID: INT-18
diff --git a/bootstrap/vagrant-onap/lib/_onap_functions b/bootstrap/vagrant-onap/lib/_onap_functions
index 960b298..f68d6db 100755
--- a/bootstrap/vagrant-onap/lib/_onap_functions
+++ b/bootstrap/vagrant-onap/lib/_onap_functions
@@ -23,7 +23,7 @@
     local image=$1
     local tag=$2
     docker_openecomp_login
-    pull_docker_image ${nexus_docker_repo:-nexus3.onap.org:10001}/openecomp/${image}:${docker_version-latest} $tag
+    pull_docker_image ${nexus_docker_repo:-nexus3.onap.org:10001}/openecomp/${image}:${docker_version:-latest} $tag
     docker logout
 }
 
@@ -32,7 +32,7 @@
     local image=$1
     local tag=$2
     docker_openecomp_login
-    pull_docker_image ${nexus_docker_repo:-nexus3.onap.org:10001}/onap/${image}:${docker_version-latest} $tag
+    pull_docker_image ${nexus_docker_repo:-nexus3.onap.org:10001}/onap/${image}:${docker_version:-latest} $tag
     docker logout
 }