HAWQ-1062. Install JSON for travis builds.
Project: http://git-wip-us.apache.org/repos/asf/incubator-hawq/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hawq/commit/cf041ae0
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hawq/tree/cf041ae0
Diff: http://git-wip-us.apache.org
HAWQ-1062. Install JSON for travis builds.
Project: http://git-wip-us.apache.org/repos/asf/incubator-hawq/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hawq/commit/dd332914
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hawq/tree/dd332914
Diff: http://git-wip-us.apache.org