raster output of event-per-site heatmap
Pulled from Dave. Merged Tile.tcc. More merges to come.
More name cleanup. Also a boids beginning and misc GUIsh stuff. (Merge from Dave)
Added Camera.cpp for png output. Doesn't work since libpng wants 16bpp .
Ignores stray ppm files
Mess with tile and grid sizes, add 'a' to toggle AER display, etc.
More boidish messing around; which isn't boidish at all.  It's more like clumpoids or something.  But the neutral dynamics is bordering on interesting.
Add a half-decent fixed-point package from the net, lightly warmed over to our syntax.  First use in Vector in Element_Boid.
Make AER display togglable on 'a'; default it to off.
Add a less-obstrusive tile display, just distinguishing cache from visible-or-better
Add access to grid size in tiles
Access both clumpoid types
Fix conflict in statsrenderer.tcc
Get PNG recording working, at least at dogfood level