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
Removing criteria line on sample plots

Removed criteria line on sample plots for all except NO23 plots
Fix legend handling for null
Merge pull request #227 from isuftin/NAWQAAN-307

Fix legend handling for null
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
Merge pull request #228 from isuftin/NAWQAAN-315

Refactored TimeSeries object
Merge pull request #225 from isuftin/NAWQAA-316

Removing criteria line on sample plots
Changed wording for N criteria line
Merge pull request #229 from isuftin/master

Changed wording for N criteria line
Removed the popup help for Human-Health benchmarks and replace with a
link to the Technical Information page. Added hover tooltip to benchmark
graph per JIRA.
Merge pull request #230 from mbucknell/NAWQAAN-304

Removed the popup help for Human-Health benchmarks and replace with a
Put popup back in and put a link in the text to the technical
information page. Corrected a typo
Merge pull request #231 from mbucknell/NAWQAAN-304

Put popup back in and put a link in the text to the technical
Moved pie charts below map
Merge pull request #232 from isuftin/NAWQAAN-322

Moved pie charts below map