Node.js app runs locally but fails on Heroku

I have a Node.js app that runs perfectly locally, however as soon as I push it to Heroku the app refuses to start. I ran heroku logs and it shows that the server is up and is listening on a port. It also says the process exited with status 22 at the bottom. The Heroku docs state that the Connection Limit Reached but I'm not too sure what that means. Can anyone point me in the right direction of what's going on?

Here's the Github repo: https://github.com/andrewgu12/MVInteract The Heroku app: http://mvinteract.herokuapp.com/

2014-08-30T01:39:28.096394+00:00 heroku[router]: at=info method=GET path="/javascripts/jquery.js" host=mvinteract.herokuapp.com request_id=a29c3b15-c3ab-4dbf-9773-3c5e97329bb0 fwd="129.2.129.222" dyno=web.1 connect=1ms service=125ms status=200 bytes=771
2014-08-30T01:39:28.907226+00:00 heroku[router]: at=info method=GET path="/images/IMG_9771.jpg" host=mvinteract.herokuapp.com request_id=b9e6c7b1-2c36-4c02-b23e-e6f08841bce4 fwd="129.2.129.222" dyno=web.1 connect=2ms service=290ms status=200 bytes=786
2014-08-30T01:39:28.829830+00:00 app[web.1]: ←[90mGET /images/IMG_9771.jpg ←[32m200 ←[90m220ms - 2.34mb←[0m
2014-08-30T01:49:33+00:00 heroku[slug-compiler]: Slug compilation started
2014-08-30T01:49:56+00:00 heroku[slug-compiler]: Slug compilation finished
2014-08-30T01:49:56.635217+00:00 heroku[api]: Deploy db9ac78 by andrew@mingbogu.com
2014-08-30T01:49:56.635287+00:00 heroku[api]: Release v24 created by andrew@mingbogu.com
2014-08-30T01:49:56.922603+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T01:49:59.782636+00:00 app[web.1]: Error waiting for process to terminate: No child processes
2014-08-30T01:49:59.221476+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T01:50:00.440881+00:00 heroku[web.1]: Process exited with status 22
2014-08-30T01:50:01.159538+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T01:50:02.382946+00:00 app[web.1]:
2014-08-30T01:50:02.382965+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T01:50:02.382967+00:00 app[web.1]: > node ./bin/www
2014-08-30T01:50:02.382968+00:00 app[web.1]:
2014-08-30T01:50:02.880451+00:00 app[web.1]: Express server listening on port 33597 in development mode
2014-08-30T01:50:03.286246+00:00 heroku[web.1]: State changed from starting to up
2014-08-30T01:51:33.748521+00:00 app[web.1]: Warning: missing space before text for line 30 of jade file "/app/views/index.jade"
2014-08-30T01:51:33.853370+00:00 heroku[router]: at=info method=HEAD path="/" host=mvinteract.herokuapp.com request_id=852fabd8-cf7b-4c57-9f25-9f7c09fd4692 fwd="50.97.161.229" dyno=web.1 connect=1ms service=644ms status=200 bytes=360
2014-08-30T01:51:33.851299+00:00 app[web.1]: ←[90mHEAD / ←[32m200 ←[90m639ms - 1.39kb←[0m
2014-08-30T02:08:58+00:00 heroku[slug-compiler]: Slug compilation started
2014-08-30T02:09:22+00:00 heroku[slug-compiler]: Slug compilation finished
2014-08-30T02:09:22.747726+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T02:09:22.641841+00:00 heroku[api]: Release v25 created by andrew@mingbogu.com
2014-08-30T02:09:22.641775+00:00 heroku[api]: Deploy d928c6a by andrew@mingbogu.com
2014-08-30T02:09:25.111625+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T02:09:25.749566+00:00 app[web.1]: Error waiting for process to terminate: No child processes
2014-08-30T02:09:26.438990+00:00 heroku[web.1]: Process exited with status 22
2014-08-30T02:09:28.008233+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T02:09:29.138444+00:00 app[web.1]:
2014-08-30T02:09:29.138464+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T02:09:29.138467+00:00 app[web.1]:
2014-08-30T02:09:29.138466+00:00 app[web.1]: > node ./bin/www
2014-08-30T02:09:29.757517+00:00 app[web.1]: Express server listening on port 41644 in development mode
2014-08-30T02:09:30.107275+00:00 heroku[web.1]: State changed from starting to up
2014-08-30T02:12:19+00:00 heroku[slug-compiler]: Slug compilation started
2014-08-30T02:12:43+00:00 heroku[slug-compiler]: Slug compilation finished
2014-08-30T02:12:43.900570+00:00 heroku[api]: Deploy 20592aa by andrew@mingbogu.com
2014-08-30T02:12:43.900570+00:00 heroku[api]: Release v26 created by andrew@mingbogu.com
2014-08-30T02:12:44.462142+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T02:12:46.776970+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T02:12:48.148454+00:00 heroku[web.1]: Process exited with status 143
2014-08-30T02:12:50.014282+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T02:12:51.548957+00:00 app[web.1]:
2014-08-30T02:12:51.548977+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T02:12:51.548979+00:00 app[web.1]: > nodemon ./bin/www
2014-08-30T02:12:51.548980+00:00 app[web.1]:
2014-08-30T02:12:52.306384+00:00 app[web.1]: 30 Aug 02:12:52 - ←[33m[nodemon] watching: *.*←[39m
2014-08-30T02:12:52.304804+00:00 app[web.1]: 30 Aug 02:12:52 - ←[33m[nodemon] v1.2.1←[39m
2014-08-30T02:12:52.306150+00:00 app[web.1]: 30 Aug 02:12:52 - ←[33m[nodemon] to restart at any time, enter `rs`←[39m
2014-08-30T02:12:52.306717+00:00 app[web.1]: 30 Aug 02:12:52 - ←[32m[nodemon] starting `node ./bin/www`←[39m
2014-08-30T02:12:54.252363+00:00 app[web.1]: Express server listening on port 59874 in development mode
2014-08-30T02:12:54.779441+00:00 heroku[web.1]: State changed from starting to up
2014-08-30T02:16:41+00:00 heroku[slug-compiler]: Slug compilation started
2014-08-30T02:17:03+00:00 heroku[slug-compiler]: Slug compilation finished
2014-08-30T02:17:03.220456+00:00 heroku[api]: Deploy 5164e80 by andrew@mingbogu.com
2014-08-30T02:17:03.220534+00:00 heroku[api]: Release v27 created by andrew@mingbogu.com
2014-08-30T02:17:03.475831+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T02:17:06.416837+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T02:17:08.640550+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T02:17:09.665142+00:00 app[web.1]:
2014-08-30T02:17:09.665164+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T02:17:09.665166+00:00 app[web.1]: > nodemon ./bin/www
2014-08-30T02:17:09.665168+00:00 app[web.1]:
2014-08-30T02:17:10.261399+00:00 app[web.1]: 30 Aug 02:17:10 - ←[33m[nodemon] to restart at any time, enter `rs`←[39m
2014-08-30T02:17:10.262080+00:00 app[web.1]: 30 Aug 02:17:10 - ←[32m[nodemon] starting `node ./bin/www`←[39m
2014-08-30T02:17:10.261687+00:00 app[web.1]: 30 Aug 02:17:10 - ←[33m[nodemon] watching: *.*←[39m
2014-08-30T02:17:10.257488+00:00 app[web.1]: 30 Aug 02:17:10 - ←[33m[nodemon] v1.2.1←[39m
2014-08-30T02:17:11.347078+00:00 app[web.1]: Express server listening on port 30970 in development mode
2014-08-30T02:17:11.423826+00:00 heroku[web.1]: State changed from starting to up
2014-08-30T02:17:15.558081+00:00 heroku[web.1]: Process exited with status 143
2014-08-30T02:24:31.443643+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T02:24:34.687156+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T02:24:35.450601+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T02:24:36.083997+00:00 heroku[web.1]: Process exited with status 143
2014-08-30T02:24:36.618400+00:00 app[web.1]:
2014-08-30T02:24:36.618418+00:00 app[web.1]: > nodemon ./bin/www
2014-08-30T02:24:36.618416+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T02:24:36.618419+00:00 app[web.1]:
2014-08-30T02:24:37.098105+00:00 app[web.1]: 30 Aug 02:24:37 - ←[33m[nodemon] watching: *.*←[39m
2014-08-30T02:24:37.096652+00:00 app[web.1]: 30 Aug 02:24:37 - ←[33m[nodemon] v1.2.1←[39m
2014-08-30T02:24:37.098421+00:00 app[web.1]: 30 Aug 02:24:37 - ←[32m[nodemon] starting `node ./bin/www`←[39m
2014-08-30T02:24:37.097904+00:00 app[web.1]: 30 Aug 02:24:37 - ←[33m[nodemon] to restart at any time, enter `rs`←[39m
2014-08-30T02:24:37.603499+00:00 app[web.1]: Express server listening on port 53939 in development mode
2014-08-30T02:24:37.881966+00:00 heroku[web.1]: State changed from starting to up
2014-08-30T02:27:00+00:00 heroku[slug-compiler]: Slug compilation started
2014-08-30T02:27:24+00:00 heroku[slug-compiler]: Slug compilation finished
2014-08-30T02:27:24.692702+00:00 heroku[api]: Deploy 93109ca by andrew@mingbogu.com
2014-08-30T02:27:24.692862+00:00 heroku[api]: Release v28 created by andrew@mingbogu.com
2014-08-30T02:27:25.183363+00:00 heroku[web.1]: State changed from up to starting
2014-08-30T02:27:27.733184+00:00 app[web.1]: Error waiting for process to terminate: No child processes
2014-08-30T02:27:27.223544+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2014-08-30T02:27:28.433388+00:00 heroku[web.1]: Process exited with status 22
2014-08-30T02:27:30.623847+00:00 heroku[web.1]: Starting process with command `npm start`
2014-08-30T02:27:31.727492+00:00 app[web.1]:
2014-08-30T02:27:31.727513+00:00 app[web.1]: > node ./bin/www
2014-08-30T02:27:31.727512+00:00 app[web.1]: > mvinteract@0.0.1 start /app
2014-08-30T02:27:31.727515+00:00 app[web.1]:
2014-08-30T02:27:32.420283+00:00 app[web.1]: Express server listening on port 51720 in development mode
2014-08-30T02:27:32.735309+00:00 heroku[web.1]: State changed from starting to up