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.
pyplot_tutorial: add note about pyplot.close, add TM to first Matlab ref
fix typo
Fix memory leak caused by never disconnecting callbacks.
