Unemap. When click away from an electrode on 2D map window, unselects (unhighlights) all electrodes, matching behaviour of 3D window.
Unemap. When click away from an electrode on 2D map window, unselects
(unhighlights) all electrodes, matching behaviour of 3D window.

Also the pointer sensitivity on the 2D map is now dependent upon the
electrode marker size.


cmiss/cmgui,cmiss/cmgui