Extract kredits module

app/routes/application.js

@@ -7,7 +7,7 @@ export default Route.extend({
   beforeModel(transition) {
     const kredits = this.get('kredits');
 
-    return kredits.initEthProvider().then(() => {
+    return kredits.setup().then(() => {
       if (kredits.get('accountNeedsUnlock')) {
         if (confirm('It looks like you have an Ethereum wallet available. Please unlock your account.')) {
           transition.retry();

app/routes/index.js

@@ -9,8 +9,7 @@ export default Ember.Route.extend({
     newContributor.set('kind', 'person');
 
     let kredits = this.get('kredits');
-    let totalSupply = kredits.get('tokenContract')
-      .then((contract) => contract.totalSupply());
+    let totalSupply = kredits.get('kredits').Token.functions.totalSupply();
 
     return Ember.RSVP.hash({
       contributors: kredits.getContributors(),