(done) Set default scroll limits when creating new map.

(done) Set default edge brushes for all tile sets.

For multiplayer editor, replace "export start","expand" and "mission"
with "export game".

(done) Allow objects for individual players to be disabled in views.

(done) Display game coords in both views, tile and world.

(done) Rotate and flip clipboard.

(done) Save texture selector rotate states.

(done) Default height scale to 2.

(done) Default see level to 0.

Allow gateway editing in 3d view.

Fix crash if you paint with an empty edge brush.

Load data from game WDG.

Save data to WDG.