PEP8 fixes on dates.py
Make Axes.stem take at least one argument.

When it takes only one, the abscissae default to np.arange(len(y))
Add axes.stem call signature test
Update CHANGELOG with axes.stem change
Fix positional argument parsing
Make stem catch explicit Exception classes
ENH: add avconv movie writer for animations
TST: add smoke test for saving of animations
COSMIT: fix typos
CLEANUP: make AVConv inherit from FFMpeg
TST: use NamedTemporaryFile in animation tests
inverting an axis shouldn't affect the autoscaling setting
Renamed all instances of variables named "long" to "lon" to avoid clobbering by 2to3
Remove NO_DEPRECATED flag -- this was accidentally committed.
Added a test for #1553
Workaround Qt cursor bug when placing plots in Qt Dock area
Remove python2.5 support from texmanager.py

closes #1552
Merge pull request #1560 from NelleV/1552_remove2.5

Remove python2.5 support from texmanager.py
Merge pull request #1559 from ChrisBeaumont/master

Workaround for QT cursor bug in dock areas
Removing clip that is no longer needed