Allow "yes" and "no" check values to be translated (fixes #1819)

data/core.yaml

@@ -204,6 +204,9 @@ en:
     incomplete: <not downloaded>
     feature_list: Search features
     edit: Edit feature
+    check:
+      yes: Yes
+      no: No
   background:
     title: Background
     description: Background settings

dist/locales/en.json

@@ -250,7 +250,11 @@
         "unknown": "Unknown",
         "incomplete": "<not downloaded>",
         "feature_list": "Search features",
-        "edit": "Edit feature"
+        "edit": "Edit feature",
+        "check": {
+            "yes": "Yes",
+            "no": "No"
+        }
     },
     "background": {
         "title": "Background",

js/id/ui/preset/check.js

@@ -39,7 +39,7 @@ iD.ui.preset.check = function(field) {
         value = tags[field.key];
         box.property('indeterminate', !value);
         box.property('checked', value === 'yes');
-        text.text(value || t('inspector.unknown'));
+        text.text(value ? t('inspector.check.' + value, {default: value}) : t('inspector.unknown'));
         label.classed('set', !!value);
     };