Axes.hist: rework autoscaling. Closes 2971357.
grid, box: allow 'on' or 'off' in place of boolean. Closes 2871949.
bugfix: set_ticklabels must operate on label2 as well as label1; closes 2957923
LogLocator: when using dummy axis, don't try to access axes attribute
set_yscale should autoscale only y, etc. closes 2872466
LogNorm.autoscale ignores nonpositive values; closes 2953069
close 1287318; remove method deprecated in 2006; remove incorrect warning
close 3009264; allow windows build on python 2.7; thanks to Christoph Gohlke
update version num for release
pyplot.findobj: use docstring decorator. Closes 2994238. Thanks to Mark Roddy.
