Convert complex conditional to case
Convert complex conditional to case

- Slightly more duplication but easier to follow based on post redirect
  intent
- Convert if ! to unless
- Handle 'change_email' circumstance that wasn't previously getting
  intercepted

andreicristianpetcu/alaveteli_old,Br3nda/alaveteli,andreicristianpetcu/alaveteli,Br3nda/alaveteli,andreicristianpetcu/alaveteli_old,nzherald/alaveteli,nzherald/alaveteli,andreicristianpetcu/alaveteli,Br3nda/alaveteli,andreicristianpetcu/alaveteli_old,andreicristianpetcu/alaveteli,nzherald/alaveteli,Br3nda/alaveteli,andreicristianpetcu/alaveteli_old,andreicristianpetcu/alaveteli,nzherald/alaveteli,Br3nda/alaveteli,andreicristianpetcu/alaveteli_old,nzherald/alaveteli,andreicristianpetcu/alaveteli