Initial commit for NWS branch.
Weather service IO returns the proper forecasts for a given lat/long.
Added a forecast IO for getting forecasts from the CA/NV weather service HTML.
Added another NWS forecast.
pep8
NWSForecastIO made compatible with the viewer.
pep8
pep8
flake8
Merge branch 'master' into nws2
cnrfc ensemble forecasts
fix agrimet.pl params order (see #7)
option to filter by site
reduce memory usage when used with flattened()

also preserve parameter code
option to filter by end date

fix test
convert to CFS
clean up other IOs
docstrings
Merge pull request #8 from heigeo/nws2

nws hydrograph & cnrfc ensemble forecasts