RMPath enhancement code about route-me HOT 8 CLOSED

Here's an improved patch to replace the old one.  I made it faster and fixed a 
bug.

RMPath doesn't display paths wider or taller than about 2000 pixels.  This patch
fixes that by clipping the path's bounds to the screen bounds.  This patch also
includes a more elegant implementation of the scaleLineWidth property.

P.S. that patch above also releases "points" in dealloc, fixing a memory leak.

I'm using this patch and it works very well. It should be checked into the repo.

Jan 08 version of patch incorporated in r209. Please test.

Oops, Comment 4 is wrong; that was actually done in r211. But this patch 
introduced a crashing bug in a client 
app. I've reversed r211. Will, can you try this in a branch?

Is these issues solved by r569 ? 
It look like very similar to this.

Seems ok for me

Over here it is still not working. I'd like to have some polygon overlays over 
my map, but it still runs into this error, even with the patch applied...