Fix linting errors

app/services/kredits.js

@@ -16,6 +16,8 @@ export default Service.extend({
 
   currentUserAccounts: null, // default to not having an account. this is the wen web3 is loaded.
   currentUser: null,
+  contributors: null,
+  proposals: null,
   currentUserIsContributor: notEmpty('currentUser'),
   currentUserIsCore: alias('currentUser.isCore'),
   hasAccounts: notEmpty('currentUserAccounts'),
@@ -23,6 +25,12 @@ export default Service.extend({
     return this.currentUserAccounts && isEmpty(this.currentUserAccounts);
   }),
 
+  init () {
+    this._super(...arguments);
+    this.set('contributors', []);
+    this.set('proposals', []);
+  },
+
   // this is called in the routes beforeModel().  So it is initialized before everything else
   // and we can rely on the ethProvider and the potential currentUserAccounts to be available
   getEthProvider: function() {
@@ -84,9 +92,6 @@ export default Service.extend({
     return this.kredits.Token.functions.totalSupply();
   }),
 
-  contributors: [],
-  proposals: [],
-
   loadContributorsAndProposals() {
     return this.getContributors()
                .then(contributors => this.contributors.pushObjects(contributors))