matplotlib Code

suppress gcc-4.3 warnings

Remove one-pixel offset in clipbox code.

Fix disappearing small markers problem.

raise on out of range text location in backend agg

reverted a bug I introduced when toying around with copy region in agg

added some helper functions for poly collections and masked regions

Added missing include, fixed debian bug #505618

Add comment about minimum positive values.

fixed from_images to respect stride

Committed Andrew Straw's patch to support hyperlinks. Currently only the SVG backend, but the infrastructure is there for other backends to support it.