JSHint unused and undefined variables

app/assets/javascripts/app/models/post/interactions.js

app/assets/javascripts/app/pages/contacts.js

app/assets/javascripts/app/pages/profile.js

app/assets/javascripts/app/router.js

app/assets/javascripts/app/views.js

app/assets/javascripts/app/views/bookmarklet_view.js

app/assets/javascripts/app/views/comment_stream_view.js

app/assets/javascripts/app/views/contact_view.js

app/assets/javascripts/app/views/content_view.js

app/assets/javascripts/app/views/faq_question_view.js

app/assets/javascripts/app/views/header_view.js

app/assets/javascripts/app/views/help_section_view.js

app/assets/javascripts/app/views/help_view.js

app/assets/javascripts/app/views/hovercard_view.js

app/assets/javascripts/app/views/location_view.js

app/assets/javascripts/app/views/notifications_view.js

app/assets/javascripts/app/views/photos_view.js

app/assets/javascripts/app/views/poll_view.js

...pts/app/views/publisher/aspect_selector_blueprint_view.js

...sets/javascripts/app/views/publisher/poll_creator_view.js