GitLab

importing setting names explicitly makes it hard to write tests that
depend on specific setting values and polutes the module namespace.

In this commit only settings that are currently used in tests where
refactored.

At the project application detail, project administrators
(ASTAKOS_PROJECT_ADMINS setting) may approve or deny it.
A denied application is still viewable by the applicant,
until he dismisses it from the same page.

The project administrators' project list includes all projects.

* Substitute ``username`` with ``displayname``

- New landing page (missing icons)
- Auth methods js bug fixes
- Style fixes

introduce a helper view to allow user update the account api token.
``renewToken`` javascript helper method is included in forms.js.

- Validate signup email over *verified* emails. Additional signups with
  an existing *unverified* email will replace those entries.
- Redirect on signup success instead of just rendering a template.

Update Astakos API to provider calls for retrieving uuid from the username and vice versa, extend astakos client library (snf-common) and update pithos to use uuids instead of email for account identification

- Redirect to index on password reset views (no need for intermediate
  views)
- Show login success message

- Store additional provider info in PendingThirdPartyUser entries
- Include third party registration logic in main signup view. Additional
  per provider signup views removed.
- Unique email validation for all activation backend forms
- Keep created dates in auth provider and pending user entries
- Other minor fixes

Refs: #3007

Refs: #3041

Refs: #3041

Refs: #3041