Added a wider range of day ranges for the AutoDateLocator.
If multiprocessing fails, don't use it during setup.
Make setup work on platforms where multiprocessing does not.
Merge pull request #2083 from pelson/longer_date

Added a wider range of day ranges for the AutoDateLocator.
Merge pull request #2114 from mdboom/multiprocessing-during-setup-1-2

multiprocessing use should be optional during setup
Merge pull request #2115 from mdboom/multiprocessing-during-setup-1-3

Make setup work on platforms where multiprocessing does not (1.3.x version)
Merge remote-tracking branch 'upstream/v1.2.x' into v1.3.x

Conflicts:
	setup.py
fix issue #1881, pgf: add style information for hatchings
pgf: add hatching to test figures