Make several data external instead of bundled:

Also dist/data/* contains minified files now

These are now external and will fetch as needed:
-export { dataAddressFormats } from './address-formats.json';
-export { dataDeprecated } from './deprecated.json';
-export { dataDiscarded } from './discarded.json';
-export { dataLanguages } from './languages.json';
-export { dataPhoneFormats } from './phone-formats.json';
-export { dataShortcuts } from './shortcuts.json';
-export { dataTerritoryLanguages } from './territory-languages.json';

test/spec/ui/fields/localized.js

@@ -1,6 +1,19 @@
 describe('iD.uiFieldLocalized', function() {
     var context, selection, field;
 
+    before(function() {
+        iD.data.languages = {
+          de: { nativeName: 'Deutsch' },
+          en: { nativeName: 'English' }
+        };
+        iD.data.territory_languages = {};
+    });
+
+    after(function() {
+        delete iD.data.languages;
+        delete iD.data.territory_languages;
+    });
+
     beforeEach(function() {
         context = iD.coreContext();
         selection = d3.select(document.createElement('div'));
@@ -8,6 +21,7 @@ describe('iD.uiFieldLocalized', function() {
         field.locked = function() { return false; };
     });
 
+
     it('adds a blank set of fields when the + button is clicked', function() {
         var localized = iD.uiFieldLocalized(field, context);
         selection.call(localized);