Changelog

0.3.0

The parchment now replaces the game's map in worlds that have the map enabled too, not only in no-map worlds: no minimap and no map on M without a parchment in hand. New server rule ReplaceVanillaMap, on by default; set it to false to keep the old behaviour (the mod does nothing where the map is enabled).
The map your character already had in such a world is left untouched in the character file and comes back when the rule is switched off. It is not copied onto parchments.
The detailed picture (SatelliteMap 0.2.0 or newer) now shows the land as it was when you charted it, not as it is now. A new house or road appears on the parchment only after you walk there again with the parchment in your hand and then visit a cartography table. The tooltip counts the places charted anew that still wait for a table. Copying through the table copies the picture as well: the most recent cartographer wins.
Parchments and tables made with older versions keep working: their drawn places get a snapshot of the world as it is when you first hold the parchment with 0.3.0. Parchments touched by 0.3.0 cannot be read by older versions.
Server and players need the same minor version, so everyone has to update. For the "as charted" picture the server needs SatelliteMap 0.2.0 as well; with an older one the picture stays live.

Works together with the new SatelliteMap mod (optional): zooming in shows the drawn part of the parchment as a detailed top-down picture of the world, with relief, forest, player-made paths, buildings, ruins and boss altars.
New server rule DetailLevel (0-3) decides how detailed that picture is. It is the groundwork for parchment grades: the level will come from the grade of the parchment.
Maps made with 0.1.0 keep working. Server and players need the same minor version, so everyone has to update.

First release: a craftable parchment map for no-map worlds. It works only in your hand, keeps its own explored area and marks, gets drawn at the cartography table and can be copied through it. The map is a picture: no player markers, marks only on drawn land.