20130120b6

- p0030 fixed - Resolution multiplier wasn't sticking, for some odd
reason.
- Thanks to Luis for the report leading to p0029. This one is very
strange. For a small number of lights, there was no issue. For larger
number of lights assigned to overrides, the changeScnLine() function
encountered problems. The root cause isn't clear. The light override
code has been altered to not use changeScnLine and to direct-write
instead.
- Object motion start and end variables moved to global state.
- Buffer handling function tweaked to avoid possible file corruption.
- .bat files are now deleted after the render is complete. No need for
diagnostic aids.
- AS toggle added to scene master override.
- To implement AS toggle, had to revise scene master override so
removing some legacy stuff as well since we're breaking things anyway.