Adapt the item description of the colored Easter eggs.

Since the event where you got a prize for collecting all of them isn't active anymore,
the description was misleading.
Add a particle effect that can be used when the player receives some object.
Add new id for invisible npcs, make old id not selectable as suggested by 4144.

Previously id 127 was used for both regular npcs with an invisible sprite
and npcs used for e.g. spell effects, which shouldn't be selectable, but were.
Update all not up-to-date minimaps.
Minimap renderer: allow to run elsewhere than tools/
Minimap renderer: add special args:

 * "all" to create minimaps of all existing maps
 * "update" to update all existing minimaps
Add missing 019-4 minimap
Add a tool to get data about the maps database.

 * Add a command to list maps that do not have a minimap
Clover patches on 017-1:

Remove one of the spawns and give a much larger delay to the other one.
Update the icon for rednose to the latest version from ChefChelios.

In this version it doesn't look like the 'Eye Patch' icon anymore.
010-1: Moved x1 tiles from Fringe to Ground2
013-1:

* Moved x1 tiles from Fringe to Ground2
* Moved treetrunks from Ground2 to Ground
* Erased orphan fence tiles within trees
007-1:

* Moved x1 tiles from Fringe to Lower. Part of a roof remains in Fringe.
* added roof edge at 78,74