1.0.1202 Unstable

1bb5613 Merge pull request #151 from grondag/occlusio-fix
2becb05 Seems mostly fast enough
730096f Partial optimization of distance refresh
05830f0 Making tracing configurable, some cleanup
0ddbca7 Occluder redraw detection seems to be working but not particulary valuable due to frequent back tracking and view changes
9af28bf Mostly working, probably
53378fd Maybe not borked now
6b16b6e it borked
ab1495c Maybe?
bb91408 Stop skipping checks/updates for render region at origin, add more sanity checks to render regions generally
45f3228 Create WIP dev pack, disabled