Added db functionality.

All configuration options should be pulled from the database, not
the app itself. Therefore, we added postgreSQL to store our data.
Work in progress.

Later: make the code more "pretty"; move database side of the app
to its own section, separate from the rest of the code.

* Added postgreSQL db to the app
* Configuration options now available via psql!
Split up code to remove clutter.

Added a data section to the repository. This will contain anything and
everything that has to do with data access, and all that needs to be
called is the surface file (db.js) which contains all the functions
needed by the app to access the database. On top of that, a helper file
was added to do all the heavy lifting for the app behind the scenes.

* Added data access layer
* Added a helper file to place users into the bridge
* Significantly reduced the workload of confbridge.js
Merge pull request #4 from bkford/master

Split up code, added data access layer