Added feature and steps for Disqus
Added Disqus account settings to initializers/disqus.rb
Added show view and specs for Documents and Articles
refactored disqus_embed into a partial
adjusted show views and specs for documents and articles
refactored features and steps
refactored show views and specs
changed directory structure for partials and initializer
moved inline js into a file
Move EventsController#normalize_event_dates to EventsCreatorService
added Hangout feature and steps
 added Event show view specs and code
added code and specs to EventsController
added table and model for Hangouts
added hangoutsController and route
moved partials into hangouts directory
minor refactoring
changed type of foreign key for events
renamed the Hangouts controller
added routes for :options preflight check of cors
moved hangout specific code to partials
moved javadcript into js file
include javascript with content_for
moved WSO secrvice connection application id to initializer
extracted hangout button spec to a shared example
extracted event topic to  a helper method
added Events <- Hangouts association
refactored button loading javascript