Add basic hold-fire stance, and use it for some test maps.
Add JSON data container to map XML files, to simplify the interaction
between scripts and maps.
Fix fixed-point printing so it roundtrips safely through map files.
Fix camera startup positions in old-format maps.
This was SVN commit r7844.
Delete unnecessary unused incomplete profiler scripting support.
Clean up some JSAPI code to use newer features.
Display simulation script functions in the profiler.
This was SVN commit r7503.
