Retrieving the discrete concentration time series data to calculate the
value for the exceedance plot. Also did some rearranging of the code in
main.js so that code that can run before the siteInfo is done outside of
the promise resolution.
Merge pull request #289 from mbucknell/NAWQAAN-377

Retrieving the discrete concentration time series data to calculate the
Put SOS_BASE_DEFS_URL constant in settings.py. Pass it to the templates
and set the value in CONFIG.

Updated a couple of the tests to set this since they call
TimeSeriesVisualizationRegistry and were throwing a console error which
will cause phantomjs to barf. Removed GraphPopup.js because we have no
tests for it and it was also causing a console.log error.
Merge pull request #290 from mbucknell/NAWQAAN-377

Put SOS_BASE_DEFS_URL constant in settings.py. Pass it to the templates
Merge branch 'master' of github.com:USGS-CIDA/nar_ui
no more prde in america