remove unusued javascript files; GC clearing from application/vanna controller

app/controllers/application_controller.rb

app/controllers/vanna_controller.rb

app/views/layouts/application.html.haml

config/assets.yml

public/javascripts/diaspora.js

public/javascripts/pages/featured-users-index.js

public/javascripts/pages/mentions-index.js

public/javascripts/pages/multis-index.js

public/javascripts/pages/people-show.js

public/javascripts/pages/posts-index.js

public/javascripts/pages/posts-show.js

public/javascripts/pages/tag-followings-index.js

public/javascripts/pages/tags-show.js

public/javascripts/stream.js

public/javascripts/templates/notification-badge.mustache

public/javascripts/vendor/jquery162.min.js

public/javascripts/view.js

public/javascripts/widgets/aspect-navigation.js

public/javascripts/widgets/back-to-top.js

public/javascripts/widgets/comment.js