Cleaning up more cruft in example app.js

Converted to npm-installable connect/express middleware

License and attribution added, along with Readme.md

Always return image from heatmapper. Make sure img refreshes in browser

added .png extension to name for image file requested, added cache control, but ultimately client-side had to jack the query string to get proper reloads done

Added browser-provided window geometry for image

mongodb heatmapProvider save fixed, code cleanups

support files for using heatNode with mongodb driver instead of mongoose

generateimages.js now works with mongoose and connect-mongodb result sets

Compound index added to model, second param added to query

Cleanup mongoose file, add window size to lytebox querystring

Query working, added click count to image

Switched to using async.series for the chained image manipulation

Initial bootstrapping commit