Plotting function utilizes deprecated Basemap functions

[kuanb]

Relevant traceback:

/usr/local/lib/python2.7/site-packages/mpl_toolkits/basemap/__init__.py:1623: MatplotlibDeprecationWarning: The get_axis_bgcolor function was deprecated in version 2.0. Use get_facecolor instead.
  fill_color = ax.get_axis_bgcolor()
/usr/local/lib/python2.7/site-packages/mpl_toolkits/basemap/__init__.py:3222: MatplotlibDeprecationWarning: The ishold function was deprecated in version 2.0.
  b = ax.ishold()
/usr/local/lib/python2.7/site-packages/mpl_toolkits/basemap/__init__.py:3231: MatplotlibDeprecationWarning: axes.hold is deprecated.
    See the API Changes document (http://matplotlib.org/api/api_changes.html)
    for more details.
  ax.hold(b)

[fscottfoti]

PRs welcome!

[smmaurer]

See issue #144