Phase I Addendum work complete

Changes:

how questionnaire prompts for stories (end of section> tell your story > forum with button prompting to return to survey)
return to survey button absent from forum page if not sent through tell your story page
random name generator
check username isnt common (currently the list used is full of more than 'common' names. See list)
made registration process use ajax, so that when there are errors, the sign up form isnt reset to blank
a page to read someone's full story and comment (no email notification yet if someone comments on a story)
some dashboard style changes (not including changes requested recently for Phase II)

publiclab / wherewebreathe