Limited number of processes on Travis to 8, since otherwise we run out of memory when running too many inkscapes/ghostscripts in parallel
Remove tests we're no longer using because they consume too much memory on Travis
Fix .travis.yml message
Histograms with stacked=True, normed=True now normalize sum of histograms rather than each histogram individually.
Add test images
Described stacked normed hist changes in CHANGELOG
PEP8 fixes
Merge pull request #1833 from neggert/normedstacked_fix

Change hist behavior when normed and stacked to something more sensible
Added bar plot pickle support.
Made it possible to pickle Log scale plots.
De-dented after the fix.
Fixed tight_layout pickle support.
Fix #1991 and #1828.  Integer overlow on Python 3 causes a crash.  Adds a test.
Merge pull request #1991 from mdboom/ticker-overflow

bugfix for matplotlib/ticker.py (python 3.3)
Merge remote-tracking branch 'upstream/v1.2.x'

Conflicts:
	lib/matplotlib/tests/baseline_images/test_axes/formatter_large_small.pdf
	lib/matplotlib/tests/baseline_images/test_axes/formatter_large_small.png
Merge pull request #1990 from pelson/tight_layout_pickle

Fixed tight_layout pickle support.
Merge remote-tracking branch 'pelson/log_scale_pickle'

Conflicts:
	lib/matplotlib/tests/test_pickle.py
Merge pull request #1988 from pelson/pickle_bars

Added bar plot pickle support.
Use a plot directive rather than a link to a file in the _image directory, since the latter doesn't work with the latex build
A number of small fixes to reduce warnings during doc build