added developer commit history example for annual purge
turn off redundant tick labeling in pyplot.subplots
[3143748] Math domain error in ticker.py is_decade()
Making the necessary changes for Python 3.
added freestanding dist support for sample_data
bumped version number to 1.0.1rc
move center of map show contintents filled correctly
detect projection out of range, set error flag.
add more checks for undefined projection values.
update
