Basic email ajax checking on sign-up.
Remove need to enter password twice, show password as typed.
Sign up form prevents submit until all fields entered.  Needs alerts.
rearranged registration page
Merge branch 'master' of github.com:RollWave07/CareWell
changes with Gene
Merge branch 'signup'

Conflicts:
	app/assets/javascripts/welcome.js
	app/assets/stylesheets/welcome.css.scss
	app/views/devise/sessions/_new_session.html.haml