Keep README and TESTING at ant clean time.

Change-Id: I3c55d732d2857e9c6e23f535c5500d54eaf9f258
Reviewed-on: http://review.couchbase.org/23850
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Reviewed-by: Deepti Dawar <deepti.dawar@globallogic.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>