Support direct access to serializer streams, so serializers can be
nested.
Make component script "this.template" read-only.
Stop globally-subscribed component scripts receiving messages posted to
local components, to reduce out-of-sync risks.
Move pathfinder data out of entity template directory.
Fix GuiInterface deserialization.
This was SVN commit r8865.
Giant merge from
http://svn.wildfiregames.com/hg-source/file/5fb522019d5e
Infrastructure is largely complete, gameplay is largely missing
Disabled by default; use command-line flag "-sim2"
(Second attempt at commit...)
This was SVN commit r7259.