Skeleton web app from express generator, angular seed & d3
Added ZWave library with basic sensor updating support. (REQUIRES custom node-openzwave, PR pending...)

Notes:
- Only tested with Aeon Labs 4-in-1 Sensor. Config params are currently
hardcoded in, thus this is really more of a POC than anything else.
- Requires the `setConfigParam` method and `validatevalues` option to be
available on node-openzwave library. These are pending PRs at this time.
Added basic sensor logging to MongoDB
Merge branch 'zwave'