categorical metadata performance work (#356)

* do not create unecessary option state for categories we will not display

* performance improvements for categorical metadata handling

client/src/reducers/config.js

@@ -2,7 +2,8 @@
 const Config = (
   state = {
     displayNames: null,
-    features: null
+    features: null,
+    parameters: null
   },
   action
 ) => {

client/src/reducers/controls.js

@@ -16,7 +16,7 @@ import {
 function createCategoricalAsBooleansMap(world) {
   const res = {};
   _.each(world.summary.obs, (value, key) => {
-    if (value.options) {
+    if (value.options && key !== "name") {
       const optionsAsBooleans = {};
       _.each(value.options, (_value, _key) => {
         optionsAsBooleans[_key] = true;