Description:

Stubs out a new cable channel for the server (in Ruby) and client (in CoffeeScript).
Pass the channel name, either CamelCased or under_scored, and an optional list of channel actions as arguments.

Note: Turn on the cable connection in app/assets/javascript/cable.js after generating any channels.

Example:

rails generate channel Chat speak

creates a Chat channel class and CoffeeScript asset:
    Channel:    app/channels/chat_channel.rb
    Assets:     app/assets/javascript/channels/chat.coffee