Fixed JavaScript "no-eval" violation.

.eslintrc

@@ -8,7 +8,7 @@
         "key-spacing": [2, {"beforeColon": false, "afterColon": true}],
         "new-cap": [0, {"newIsCap": true, "capIsNew": true}],
         "no-alert": [0],
-        "no-eval": [1],
+        "no-eval": [2],
         "no-extend-native": [2, {"exceptions": ["Date", "String"]}],
         "no-multi-spaces": [2],
         "no-octal-escape": [2],

django/contrib/gis/static/gis/js/OLMapWidget.js

@@ -175,7 +175,7 @@
         } else if (options.geom_name === 'GeometryCollection') {
             options.geom_type = OpenLayers.Geometry.Collection;
         } else {
-            options.geom_type = eval('OpenLayers.Geometry.' + options.geom_name);
+            options.geom_type = OpenLayers.Geometry[options.geom_name];
         }
 
         // Default options