Usability improvements

[gklyne]

• [x] Login continuation should be current page, not always profile
• [x] annalist-manager createsite - allow site description to be provided
• [ ] annalist-manager runserver - allow IP-addr:port to be provided
• [x] Home page: options to edit collection id, label and site description
• [ ] Improve authorization failure messages cf. AnnalistGenericView.authorize, .form_action_auth, displayinfo.check_authorization, entityedit.save_entity, etc.
  • [x] added scope parameter to replace HTTP method. Is this enough?

[gklyne]

Site/collection descriptions can now be provided by editing collection metadata.