Do not send travis notifications to common list

Change-Id: Ia700cf3fc2cdc1a090055d797b6f92c2117ead1d
Reviewed-on: http://review.couchbase.org/28021
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>