Added MongoDB replication text
deploy history
notification documentation
padrino and sinatra docs
curly bracket fix
underscore fix
Merge branch 'feature/padrino_sinatra' of http://github.com/cloud66/help into develop
Merge branch 'master' of http://github.com/cloud66/help into develop
MongoDb replica set documentation
Merge branch 'develop' of github.com:cloud66/help into develop