Added documentation on Python+MongoDB

Also reorganized the documentation for MongoDB to avoid repetition
Merge pull request #61 from anowak/heroku-python

Added documentation on Python+MongoDB
Documentation for Heroku+Ruby integration
Merge pull request #62 from anowak/heroku-ruby

Documentation for Heroku+Ruby integration
Addition of Clojure Sample File Page
Merge pull request #63 from OneRedOak/master

Addition of Clojure Sample File Page
Addition of sample_clojure_mongodb Sample App
Merge pull request #64 from OneRedOak/master

Addition of sample_clojure_mongodb Sample App
Added section on Heroku+Node.js
Merge pull request #65 from anowak/heroku-nodejs

Added section on Heroku+Node.js
Addition of Clojure with PostgreSQL Build Sample
Merge pull request #66 from OneRedOak/master

Addition of Clojure with PostgreSQL Build Sample
Addition of Go with Postgres Build Sample
Merge pull request #67 from OneRedOak/master

Addition of Go with Mongo Build Sample