updated manifest for random-word for easy push
updated env var VCAP_APP_PORT to PORT
updated README instructions to note Postgres issue on run.pivotal.io
Merge pull request #29 from jbayer/run-pivotal-io-updates

Run pivotal io updates
remove mongodb related codes, tests and documentation
remove mongodb related codes, tests and documentation
Merge remote-tracking branch 'vmw-tmpst/master'