Front end filtering of stations by State/Site Type
Merge pull request #280 from thongsav-usgs/NAWQAAN-376

Front end filtering of stations by State/Site Type
The auxData for moving average, mean, and target are now shown only for
the virtual site for annual load.

Also made the graph popup window fill the entire map space.
Merge branch 'master' of github.com:USGS-CIDA/nar_ui into NAWQAAN-374
Merge pull request #281 from mbucknell/NAWQAAN-374

Nawqaan 374
previously selected values are carried forward. select2 behavior seems
to work to drop selected values if they no longer exist in the list of
available values.
refactor for testability
- MRB site type now actually filters stations down to MRB sites
- More refactoring
Added unit tests for filtering, actual UI events/wiring still not
tested.
test tweak
Merge pull request #282 from thongsav-usgs/NAWQAAN-376

Nawqaan 376
Work in progress. Moving PlotUtil static method to TimeSeriesCollection instance method.
Updating reduce so that it accesses a property of the object.
Updating usages of PlotUtils.getDataSplitIntoCurrentAndPreviousYears
Moved todo comments to NAWQAAN-373.
Minor fixes for tests.
Merge pull request #283 from cschroed-usgs/NAWQAAN-237-duplicatePlotsInTree

Nawqaan 237 duplicate plots in tree