Fix USE_FONTCONFIG == True mode.
Implemented fix to issue 196 on github for log=True and histtype='step'
fixed the minimum specification in ax.hist as per @WeatherGod's comment;
only want to set min this way if log is specified.  Also, added case for
normed vs not
Use numpy.min
Add hist step log test
Use actual log base, instead of assuming a default
Revert "When using nearest neighbor interpolation and not actually scaling, just copy the data.  (Note we don't do this for other kinds of interpolation, because the filtering on those interpolations could have an effect even when not actually scaling.)"

This reverts commit 1c9f9b5f6cb3b308df95e56f7230d71963837812.
Partial revert of 8c25664fcfcb9c2e288607ff86d0a1957248284f

This removes the flipping done in Python and keeps the regression tests.
Merge pull request #1691 from dmcdougall/fix_svg_flip2

Fix svg flipping (again)
Update year
Fix itervalues -> values.  As reported by Massimiliano Costacurta in mailing list thread "BUG: RuntimeError: dictionary changed size during iteration"
Fix for when no afm files are installed.  From https://bugzilla.redhat.com/show_bug.cgi?id=896182, though fixed in a different way.
Merge pull request #1666 from mdboom/fix-fontconfig-mode

Fix USE_FONTCONFIG=True mode
Merge pull request #1678 from tacaswell/qt4_closeevent

added QtGui.QMainWindow.closeEvent() to make sure the close event
Re-wired signal/slot connections so that the figure in removed from
Gcf when it is closed.

In PR #1498 the attribute WA_DeleteOnClose was no longer set on the
QtMainWindow object in QtFigureManager.  The signal connection that
was being used to remove the figure from Gcf when the window was closed
was tied to the `destroyed()` signal of QtMainWindow, which is no
longer being destroyed.  Thus, gca and gcf would return references
to no-longer visible figures/axes.  _widgetclosed is now called when
MainWindow emits 'closing()'.
PEP8: whitespaces
Add figure close test for qt4 backend
PEP8 fixes to FigureManagerQT class
test for issue #1683
fixed link rot