Merge branch 'newb' into 'master'

Gemfile

Gemfile.lock

app/assets/javascripts/application/accessibility.js

app/assets/stylesheets/application.scss

app/assets/stylesheets/application/welcome.scss

app/views/collections/_collection.html.erb

app/views/collections/_create.html.erb

app/views/collections/_form.html.erb

app/views/collections/_group.html.erb

app/views/devise/registrations/edit.html.erb

app/views/devise/sessions/new.html.erb

...iews/learning_objects/_add_to_collection_popover.html.erb

app/views/shared/application/_footer.html.erb

app/views/shared/application/_header.html.erb

app/views/welcome/add_file.html.erb

app/views/welcome/collection.html.erb

app/views/welcome/index.html.erb

public/system/users/avatars/000/000/001/medium/singup.png

public/system/users/avatars/000/000/001/original/singup.png

public/system/users/avatars/000/000/001/thumb/singup.png