Replace their usages with the literal versions, [] for lists, {} for
dicts, etc. It's easier for others to read, looks nicer, and the
interpreter will convert it into bytecode that is executed faster
(special opcodes for the containers, instead of performing function
calls).

Within an except clause, raise exceptions with raise ... from err or
raise ... from None to distinguish them from errors in exception
handling

* Allow an approver to make changes to the PAF whilst they are approving

* Expose the applicant view of the project and allow them to edit

Applicants can only edit in the first phase
Applicants can only edit the base data on the project

* Improve the display of the addressfield and value

* Add tests in for the views

* De-submissionify the emails to the user

* Fix from rebase