Disable grouping for heatmap data

src/client/actions/index.js

src/client/components/facet_results/LeafletMap.js

src/client/components/perspectives/sampo/Perspective1.js

src/client/epics/index.js

src/client/helpers/helpers.js

src/client/reducers/error.js

src/client/reducers/options.js

src/client/translations/sampo/localeEN.js

src/server/index.js

src/server/sparql/FacetResults.js

src/server/sparql/Mappers.js

src/server/sparql/sampo/SparqlQueriesPerspective1.js