overviewer/Minecraft-Overviewer — pull request #545 by tswsl1989 (2011-11-26 17:49:24+00:00)
Title: Updated north-direction to match Minecraft 1.0.0

This set of commits adds a version field to overviewer.dat that we can use to check whether or not to add or update stored information to bring it up to date

It then uses that version field to check whether or not to update the defined north direction to match 1.0
Works fine for new renders and updates sanely for previously rotated maps.

The version field for overviewer.dat is taken to be the extension version - I didn't like the idea of adding a third version number.

This should close issue #537