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
added jasmine tests for hangout button js
minor refactoring after code review
refactored javascript
added js specs
minor refactoring after code review
added global load_hangout function and specs
moved APP_ID constant out of module
some minor refactoring
restart travis
Merge pull request #434 from YaroSpace/hangout

Hangouts feature