Output assumptions and risk rating go in and out of db

previously were hard wired in the template
Fix ordering of risk rating to order entered
Add placeholders for all form elements used

The placeholder is an HTML5 element that puts a greyed out text value in
the input fields.

Still need to copy it into the content editable area.
Make placeholder text work in our contenteditable bits

Nicking code from http://stackoverflow.com/a/14531126/3189

And copying from the django generated placeholder attribute into the
data-placeholder attribute required for this hack.