Added 'show selected biodata sites' step.
description added
Adding checklist-model to project.
Adding checklist-model directive to client-side app.
Adding biodata site selection table with help of checklist-model directive.
Updated checklist-model per github discussion: https://github.com/vitalets/checklist-model/issues/4
Clearing user selections when a new box is drawn
Created form to send users into biodata with pre-populated site filters.
Merge branch 'WATERSMART-204' into WATERSMART-204-showSelectedBioDataSites
Merge branch 'master' into WATERSMART-204-showSelectedBioDataSites
Merge pull request #21 from cschroed-usgs/WATERSMART-204-showSelectedBioDataSites

Watersmart 204 show selected bio data sites