Set up dummy null data for  site 0545120 (South Fork Iowa Rive near New
Providenc, IA) to demonstrate the labels for the graphs with no data.
Used canvas to draw the No Data on the streamflow and water quality
graphs. For the benchmark graph, I created a function to return the text
to show. My thinking is that we can modify this in the feature to show
the number of collected samples if that information is available.
Merge branch 'master' of github.com:USGS-CIDA/nar_ui into NAWQAAN-304
Merge branch 'master' of github.com:USGS-CIDA/nar_ui into NAWQAAN-304
Removed commented out code.
Merge pull request #224 from mbucknell/NAWQAAN-304

Nawqaan 304