move stormpath calls to clean()
return account on save
comments form forms
let the views handle stormpath password reset flow
let stormpath check password and username
check if email was provided
don't perform any action in clean methods
Merged in misc_fixes (pull request #12)

refactoring of clean and save methods
form docstrings and changed required fields
Merged in misc_fixes (pull request #13)

form docstrings and changed required fields