Support asynchronous path queries.
Allow escaping when stuck in impassable terrain tiles.
Split Update message in multiple phases, to cope with ordering
requirements.
Support automatic walk/run animation switching.
This was SVN commit r8058.
Fix projectiles launching from actors with no ammo prop.
Fix default camera location on maps with no civ centers.
Avoid units getting stuck on the edges of buildings.
This was SVN commit r7950.
Remove redundant comparisons in pathfinder.
Simplify range query result ordering.
Avoid throwing exception on script errors in debug serializer.
This was SVN commit r7828.
Add short-range vertex-based pathfinder.
Integrate new pathfinder into unit motion code.
Change obstruction system to get rid of circles, and differentiate
structures from units.
Make PositionChanged messages synchronous.
Try to prevent some accidental float->int conversions.
This was SVN commit r7484.
