-Auras now take additional parameters from XML, containing a tag for r,
g, b, and a. No line thickness parameter yet.
-For territories, added function to frustum for determining if line
segment passes through the frustum.
This was SVN commit r4242.
Also fixed sectorDivs so it's always initialised, since the complaints
were annoying.
Camera: Added a const.
Super cavalry: Added required(?) aura attributes.
This was SVN commit r3906.
