* Add coverage for create with empty acct value
* Add coverage for create with webfinger failure
* Add coverage for create with webfinger providing bad values
* Add coverage for create when webfinger is good
* Add coverage for session[:remote_follow] having data
* Simplify how remote follow pulls acct from session
* Remote follow behaves more like model
* Move the discovery portions of remote follow out of controller
* Check for suspended accounts
