matplotlib Code

Ran "astyle --style=ansi" to convert to ANSI style.

Speed improvements -- determine path extents in C

Increase performance of draw_markers in Agg backend

Major speed improvements for auto-placing of legends.

Fix marker drawing bug, and improve speed (by using buffers on the
stack if possible).

Improve speed of quad mesh drawing (by about 25%)

Fix memory leak and increase performance in quadmesh drawing (Agg)

Still trying to fix compile error on 64-bit platforms...

Fix compile error on 64-bit platforms.

Fix compilation error on 64-bit platforms.