test of ccache, copy of rel-2.5.0.xml

Change-Id: If34d80d15bd399bc893d53bcbfebbb6c00b4e93a
Reviewed-on: http://review.couchbase.org/31792
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>