Pass --tty so jenkins can log docker output.  Comment out sending email about failed tests for now.

Change-Id: I86f5af09a7aca8ef448f79198c3bc088d8b12cc2
diff --git a/tests/bbr.groovy b/tests/bbr.groovy
index 397551e..f515ba7 100644
--- a/tests/bbr.groovy
+++ b/tests/bbr.groovy
@@ -122,7 +122,7 @@
   post {
     always {
       archiveArtifacts artifacts: '*.logs'
-      step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "joey@opennetworking.org", sendToIndividuals: false])
+      // step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "joey@opennetworking.org", sendToIndividuals: false])
     }
     success {
       plot([