Moved some logic from view into user model.

You can now add contacts from tags#show. Also, a CSS change to help us start refactoring: there's now a class to the body that you can set with content_for :body_class. This lets you scope CSS to a particular page. Started breaking out smaller CSS files.

Copyedit messages.

fixed a translation, keep up the new format in en.yml, set pagination labels in application controller

Don't redirect ajax requests to getting_started.  Fix a possible source of errors and backfill a couple tests