Remove up-time dependency, replace with supervisor

Also, add bunyan as a dependency.

package.json

@@ -5,7 +5,7 @@
   "private": true,
   "scripts": {
     "test": "NODE_ENV=test ./node_modules/.bin/tap-prettify test/*.test.js",
-    "start": "./bin/db-migrate up && ./node_modules/.bin/up -w -n 1 -p 8888 app.js | bunyan"
+    "start": "PORT=8888 ./bin/db-migrate up && supervisor app.js | bunyan"
   },
   "devDependencies": {
     "jshint": "~0.6.2",
@@ -28,7 +28,6 @@
     "db-migrate": "0.3.2",
     "nunjucks": "0.1.9",
     "underscore": "~1.3.3",
-    "up-time": "~0.2.1",
     "optimist": "~0.3.0",
     "openbadges-validator": "0.0.21",
     "openbadges-bakery": "0.2.7",
@@ -37,7 +36,9 @@
     "messina": "~0.1.1",
     "gelf-stream": "~0.2.2",
     "request": "~2.27.0",
-    "node-statsd": "~0.0.7"
+    "node-statsd": "~0.0.7",
+    "supervisor": "0.5.6",
+    "bunyan": "~0.22.0"
   },
   "engines": {
     "node": ">=0.8"