Fixes #2229: Hatching on line collections in PDF backend works
Fix unit tests.
Corrected use of cbook.warn_deprecated()
Correct use of obj_type argument in cbook.warn_deprecated
don't install python-dateutil==2.1 on python 3.3
check if pyparsing <<= is broken instead of checking the version

distributions with packaged pyparsing might have already patched
pyparsing but not bumped the version number.
closes #2376
Merge pull request #2380 from juliantaylor/pyparsing-check

check if pyparsing <<= is broken instead of checking the version
Merge pull request #2381 from mrterry/dateutil_py33

don't install python-dateutil==2.1 on python 3.3
Merge pull request #2371 from ianthomas23/warn_deprecated_correction

Corrections to cbook.warn_deprecated calls().
Merge pull request #2229 from mdboom/pdf/no-hatching

Matplotlib does not display hatching when rendering to pdf in fill_between
Fix #2386
Remove spurious print statement
Merge pull request #2386 from mdboom/fix-locale

locale breaks test suite
Reinstate accidentally deleted code
Clarify message about broken pyparsing
Merge remote-tracking branch 'upstream/v1.3.x'

Conflicts:
	lib/matplotlib/backends/qt4_editor/formlayout.py
	setupext.py
added 'savefig.transparent' rcParams

Closes issue #2388
minor tweak to `pyplot.savefig` to ensure that if `transparent=True`
is passed to `savefig`, the patch colors are restored on the screen
after saving.
comment tweak

As suggested by @dmcdougall
Added entry to whats_new.rst