Change I18n to export and object like most of our other files. This will allow us to make it mockable as well

Author: bethanyaconnor

src/oceans/i18n.js

@@ -2,15 +2,21 @@ import data from '../../i18n/oceans.json';
 import MessageFormat from 'messageformat'
 
 let messages;
-export const init = (i18n = {}) => {
+
+const initI18n = (i18n = {}) => {
   // For now, use English pluralization rules.
   const mf = new MessageFormat('en');
   messages = {...mf.compile(data), ...i18n};
 };
 
-export const t = (key, options) => {
+const t = (key, options) => {
   if (!messages) {
     throw "I18n must be initialized before calling t";
   }
   return messages[key](options);
 };
+
+export default {
+  initI18n,
+  t
+};

src/oceans/init.js

@@ -7,7 +7,7 @@ import {setInitialState, setSetStateCallback} from './state';
 import {render as renderCanvas} from './renderer';
 import modeHelpers from './modeHelpers';
 import soundLibrary from './models/soundLibrary';
-import * as I18n from './i18n';
+import I18n from './i18n';
 
 //
 // Required in options:
@@ -27,7 +27,7 @@ export const initAll = function(options) {
 
   soundLibrary.loadSounds();
 
-  I18n.init(options.i18n);
+  I18n.initI18n(options.i18n);
 
   // Set initial state for UI elements.
   setInitialState({

src/oceans/models/train.js

@@ -4,7 +4,7 @@ import {ClassType, AppMode} from '../constants';
 import SimpleTrainer from '../../utils/SimpleTrainer';
 import SVMTrainer from '../../utils/SVMTrainer';
 import {generateOcean} from '../../utils/generateOcean';
-import * as I18n from '../i18n';
+import I18n from '../i18n';
 
 const init = () => {
   const state = getState();

src/oceans/ui.jsx

@@ -31,7 +31,7 @@ import {
   faInfo,
   faTrash
 } from '@fortawesome/free-solid-svg-icons';
-import * as I18n from './i18n';
+import I18n from './i18n';
 
 const styles = {
   body: {