API server update for support of Nodejitsu

api:
- Added data/run to .gitignore
- Changed server bind config to use environment variables in support of
Nodejitsu
- Changed from connect-memcached to connect-mongodb as a quick fix for
move to Nodejitsu
- Added db handle to app for use in init of connect-mongodb
- Changed data/start to no longer fork
- Added environment variables with mostly acceptable defaults to start
script