axes.py : a slight change in the numpy version checking code
drop "new" keyword of np.histogram() for numpy 1.2 or later
Fixed a small bug in svg backend
update blue marble URL
updated blue marble URL
Fixed a handlelegth bug in the legend class
Forgot to update Changelog.
Add support for data with units to Axes.fill_between().
hist docstring updated & exception added
minor fix for legend.py