Added a wider range of day ranges for the AutoDateLocator.
Make setup work on platforms where multiprocessing does not.
Don't draw bottom line of histogram when it is unfilled.
Merge pull request #2113 from mdboom/histogram-step-unfilled-bottom-line

hist() bottom line now showing (regression?)
Merge pull request #2083 from pelson/longer_date

Added a wider range of day ranges for the AutoDateLocator.
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/v1.3.x'