issue-4: add mongoose
issue-4: add uuid
issue-4: add q
issue: wip
issue-4: add mongoose
issue-4: add q
issue-4: wip
issue-4: add config dir, add env config
issue-4: wip
issue-4: inject script
Merge branch 'issue-4' of https://github.com/BohanHsu/ruhd into issue-4
issue-4: init db script
issue-4: add underscore package
issue-4: add MD5
issue-4: add initdb and dropdb in gulp task
issue-4: update model index file
issue-4: initdb script