Bump version to 1.7.1 (non-SNAPSHOT)

Change-Id: I07a4fbe564a095c64ae12c48c7200d31aff610c7
Reviewed-on: http://gerrit.cloudera.org:8080/10280
Tested-by: Kudu Jenkins
Reviewed-by: Todd Lipcon <todd@apache.org>
11 files changed