express 4 migration
express3, and removing node dependency
Merge pull request #1 from dearyhud/express4

Express4
Moved DB info to libs/db-info.js so this can be ignored once set for future upcommits. Added warning message and kill switch if no DB data is added. Added zero admin detection and ability to create the initial admin at first login. So no more manual password creation needed. Added new admin form validation. Chanaged user.id to user.username.
Updated gitignore to not update db-info.js to the public.
Set libs/db-info.js changes to be ignored and added details to readme on how to re-enable tracking.
Implemented config package and moved DB data to config/default.json.
Updated readme details related to config file change.