This first commit only refactors code and does not add any new feature.
Refs #2913 (see this ticket for more information about the change)
This was SVN commit r15925.
To achieve this, mirage entities are created per player, to replace the
real entities when these ones fall into the fog-of-war. These mirage
entities are created on-the-fly, and destroyed when they get back in
sight.
This depends heavily on the VisibilityChanged message added in
2174eaaeee.
As a temporary adjustment, territories do not explore the map anymore
when their borders change. See #2709.
Fixes#599
This was SVN commit r15612.
Changes GetProperty, SetProperty and HasProperty and a few other
functions to take handles. The conversions to CScriptVal or
CScriptValRooted at some places should be removed in the future. I've
done that to avoid an even larger patch.
Refs #2415
Refs #2462
This was SVN commit r15568.
