Added error message when there are no file fields in datasource that need them.
Fixed a bug where redbox uri's would include the search string.
Added fix to ca_model where bool values of 'false' were being interpreted by collander boolean as True - when rendering without validation.
Minor text updates in project.py.
Untested implementation of cleanup_uploads.py
hid the example field from custom fields of type file.
Added a message to data manager with a link to the data portal.
Allowed users to delete projects before they are submitted, and admins can delete before approved.