- Include total quota help text for each resource.
- Two column layout for per user/total quota.
- Fixed owner formatters in template filters.
- Proper display of unset project application resources.
- Hide base projects by default. Include base project toggling action in
  projects list view.
- Set proper project name field validators for base project in
  project modifcation form.
- Improve visual highlighting of quota diffs
- Improve membership status messages
- Improved project filtering in project list/join views
- List all public/active projects in `join project` view.
- Handle unowned projects in projects modification form
- Display all project resources in project application summary view.
- Permit zero values in project application/modification form.
- Avoid modifcation of immutable base project fields in project modification
  view.
- Display project/application creation date to project admins.
- Remove user base project when a user gets removed.
- Convert ProjectForbidden exception to 403 http responses.
- Additional user access checks handling in project/app detail view.
- Let both applicant and project admins to dismiss a denied project
  application.
- Forbid project owner to act upon an admin project modification.
- Prevent POST requests in project modification detail view.
- Handle pending app quota per applicant
  When applying for a modification, the existing pending modifications,
  which will be replaced, may have been initiated by another user. We need
  thus to handle the astakos.pending_app resource per applicant.
- Introduce `related`, `active` mode in projects list api call
  Related mode returns all projects user owns or is has a related
  membership to. Active mode returns available public/active projects.