Version 2.40.10
- Fixed bgo#748608 - Memory leak when Gaussian-blurring.  Thanks to
  Carlos Garnacho for fixing my leaky code.
- Fixed bgo#739329 - font-family attributes with singly-quoted names
  were not handled correctly, yielding incorrect fonts.  Patch by Menner.
- Fixed bgo#476507 - Path start/end markers didn't have the correct angle
  if the path was a curve with coincident control points.  Patch by Menner.
- Fixed bgo#688689 - Support font-style="normal" within a non-normal
  styled text block.  Patch by Paolo.
- Fixed builddir != srcdir.  Patch by Matthias Clasen.
- Remove a bunch of deprecated GTK+ calls.
- This version of librsvg requires GTK+ 3.10.0, which is, ahem, only two years old.
  We previously required a version of GTK+ which is four years old.  Out with
  the old, in with the old.