change build.gradle to avoid findBugs
Merge remote-tracking branch 'upstream/master' into develop
Merge pull request #53 from eric-wu/develop

Remove the upgrade step as it errored on upgrading curl and ssl.
Noninteractive upgrade.
Forward Redis to host.
Remove Vagrant comments.
Add syncing the .gradle folder to Vagrant.
Add postgresql.
Forward PostgreSQL port.
Forward PostgreSQL port.
Forward postgresql port to host.
Merge pull request #54 from eric-wu/master

More vagrant boostrapping
Merge remote-tracking branch 'upstream/master' into develop
restore findbugs
Return an empty set when the response has no results.
Merge pull request #55 from eric-wu/master

Return an empty set when the response has no results.
adds certified user quiz request metric
adds test for unique count certified user quiz request metric
changes the Metric name
changes the uri to test