resubmitting to trigger the build bot
fixed bug in ibr.py

Change-Id: Id3a1e72ba2da906ec71ab2de26cce859ed19f600
Reviewed-on: http://review.couchbase.org/39244
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ashvinder Singh <ashvinder@couchbase.com>