Truncate response chart option values + add full option as tooltip

www/form/app-form.less

@@ -673,7 +673,10 @@
                     & > span {
                         .cp-form-results-cell();
                         &.cp-value {
-                            min-width: 200px;
+                            max-width: 200px;
+                            white-space: nowrap;
+                            overflow: hidden;
+                            text-overflow: ellipsis;
                         }
                         &.cp-bar-container {
                             width: 99%;

www/form/inner.js

@@ -1020,7 +1020,7 @@ define([
             var itemScale = (itemCount / max);
 
             rows.push(h('div.cp-form-results-type-radio-data', [
-                h('span.cp-value', value),
+                h('span.cp-value', {'title': value}, value),
                 h('span.cp-count', itemCount),
                 showBar? barGraphic(itemScale): undefined,
             ]));