use a specific commit from juggingdb-postgres dependency

This commit fixes a leak issue which breaks mocha testing.

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge pull request #9 from Henry-CF/jugglingdb-dependency

use a specific commit from juggingdb-postgres dependency
Merge pull request #10 from vmrobin/master

add func test in travis with postgres and redis
change the test reporter to list
Merge pull request #11 from whywhy36/master

change test reporter to list