Metrics

* make it so that the Procfile run by Heroku starts both the app and the stats server (this was tricky, and means that currently the dev env't needs to be start with "foreman start -f Procfile.chain" which isn't optimal.

* statsd and foreman-js included as dependencies to make the above work

* lynx and a sample usage of lynx to count published apps.

This requires a graphite server running (see appmakerStatsConfig.js) and available from prod (but it should fail gracefully).