Merge pull request #2077 from rblomberg/yahoo-csv-url-fix

changed URL to the current CSV API for yahoo finance
Added a wider range of day ranges for the AutoDateLocator.
Merge pull request #2100 from glyg/master

Remove DeprecationWarning in simple_linear_interpolation
fix position of rotated mathtext in agg backend
Fix exception_to_str to work on Python 2.x
If multiprocessing fails, don't use it during setup.
Make setup work on platforms where multiprocessing does not.
Merge pull request #2111 from leejjoon/fix-text-position-agg-backend

fix position of rotated mathtext in agg backend
Merge pull request #2104 from mdboom/exception_to_str

Bug in cbook.exception_to_str() in v 1.2
Don't draw bottom line of histogram when it is unfilled.
Merge remote-tracking branch 'upstream/v1.2.x' into v1.3.x
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 #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
Merge pull request #2116 from pwuertz/fix_1881

fix issue #1881, pgf: add style information for hatchings
Fix some segfaults when using newer Microsoft fonts.