Refactor controller and route

I’m not sure how the queryParams are used so I removed them. I’m happy to readd them.

app/routes/proposals/new.js

@@ -1,37 +1,15 @@
-import Ember from 'ember';
-import Proposal from 'kredits-web/models/proposal';
-
-const {
-  Route,
-  RSVP,
-  inject: {
-    service
-  }
-} = Ember;
+import injectService from 'ember-service/inject';
+import Route from 'ember-route';
 
 export default Route.extend({
-
-  kredits: service(),
-
-  model(params) {
-    const proposal = Proposal.create({
-      recipientAddress: params.recipient,
-      amount: params.amount,
-      url: params.url,
-      kind: params.kind || 'dev',
-      ipfsHash: params.ipfsHash
-    });
-
-    return RSVP.hash({
-      proposal,
-      contributors: this.get('kredits').getContributors()
-    });
-  },
+  kredits: injectService(),
 
   setupController(controller, model) {
-    this._super(controller, model.proposal);
+    this._super(...arguments);
 
-    controller.set('contributors', model.contributors);
+    this.get('kredits').getContributors()
+      .then((contributors) => {
+        this.controller.set('contributors', contributors);
+      });
   }
-
 });