Features/117 three panel form

Fixes #116 - 3 page form
Fixes #117 - First page is complete, some fields are visible which were not in the spec, but I think it's clearer.
Fixes #118 - Page 2 has integrated social media fixes in #60 from @kynan 
Fixes for #119 - Page 3 has the CORE integration on it

This does *not* include the email link on page 3 and is missing lots of CSS styling.  I'm sending in the PR though as other people can take it from here.