Merge remote-tracking branch 'JDShu/649_use_form_data_field'

* JDShu/649_use_form_data_field:
  Use WTForms data field in user_pages/views.py
  Use WTForms data field in auth/views.py
  auth: whitespace cleanup in views.py
  Use WTForms data field in plugins/oauth/views.py
  Use WTForms data field in submit/views.py
  Use WTForms data field in edit/views.py

diff --cc mediagoblin/submit/views.py
Simple merge