v0.5.1 (November 2014)

This is a bugfix release that includes a workaround for an issue in
matplotlib 1.4.2 and fixes for two bugs in functions that were new in
0.5.0.

• Implemented a workaround for a bug in matplotlib 1.4.2 that
  prevented point markers from being drawn when the seaborn styles had
  been set. See this github
  issue for more
  information.
• Fixed a bug in heatmap where the mask was vertically reversed
  relative to the data.
• Fixed a bug in clustermap when using nested lists of side colors.