Trying to simplify the date-controls. I have decided to wait on this and move on to other controls in the hydrograph.

Removed no longer needed code and updated the store and selectors for the new hydrographData and hydrographState properties

Tooltips, legend, and brush all work for primary IV data and ground water levels including masked IV data.

Fixed a typo which was preventing groundwaterlevels if DV graph was n…

Update changelog in preparation for release

remove period

Wdfn 496 use mail server to deliver email

Merge branch 'master' of https://github.com/usgs/waterdataui into WDFN-496_use_mail_server_to_deliver_email

Update dependencies

Reverting esri-leaflet because the layers don't seem to work with the…

Reverting esri-leaflet because the layers don't seem to work with the leaflet layers control for more recent versions.

Iow 857 - Add a table of groundwater field visit data