Improve the flow of filling in the questionnaire

[edipetres]

• Have a smooth flow going through the forms - maybe with a carousel
• Start with the intro form
• Have the ability to go back and forth - previous/next buttons
• Display current progress - with progress dots/bar
• Track forms with URL hash history - like .com/myquestionnaire#form1 - reasons:
  • make a form's url bookmarkable and shareable
  • back and forward navigation in browser (and filling in the forms)