Add method to get parent question
Add concern Observable
Add Notifier factory for persisted notification
Add Notifications::Dispatcher initializer
Extend Watching concern with more helpers
Fix CapybaraHelper
Add specs for registering Watching
Add Concern for registering Watching
Fix Watching uniquness
Add notification specs for adding answer
Add options for specifying notification target
Refactor action name for new answer
Add specs for notification model
Rename Observable to Touchable
Refactor notifications concerns and add more specs
Merge branch '1-0-beta' into notifications-feature
Comment touchable code, suggest some ways how to implement it
Add method to get parent question
Add concern Observable
Rename Observable to Touchable