GeoKrety archived status

[kumy]

User story

As a GeoKret owner I want to be able to archive my GeoKrety so then I can inform other users that a GeoKret may have disappeared.

Acceptance criteria

• A GeoKret CAN be archived by the owner
• A GeoKret CAN be archived by an admin
• Any other user CANNOT archive a GeoKret
• The archiving date MUST be provided
• The archiving date MUST be after the GeoKret born date
• The archiving date MUST NOT be in the future
• A comment MAY be provided
• An archived GeoKret MUST NOT be shown in geocache collection
• An archive action MUST be visible in the GeoKret move list
• The archived status MUST be displayed in the GeoKret details
• An archived GeoKret CAN still be moved later
• A new move (GRABBED, SEEN, DIPPED, DROPPED) after the archive date time MUST automatically un-archive the GeoKret
• When un-archived then owner MUST be notified according to his preferences

Remarks

• There is actually not such field in the current database model. Such status rely on the last move for a Geokret. The gk-geokrety table HAS to be updated, and the legacy code need to manage this eventual new field.

[kumy]

Remaining issues tracked in #219 and #220