Merge pull request #58 from USGS-CIDA/GLRIDB-291_Add_Hovers_on_filter_labels

Modified some of the hover text from the original in the task.
rm the Location Type and merged it into the Location control (now called water feature)
Merge pull request #59 from USGS-CIDA/GLRIDB-290_Re-Factor_Location_Filters

rm the Location Type and merged it into the Location control (now called...