Make the linter happy

Author: thiagoarrais

app/controllers/crate/version.js

@@ -154,10 +154,10 @@ export default Controller.extend({
   }),
 
   yankVersionTask: task(function* (version) {
-    return version.yank.perform();
+    return yield version.yank.perform();
   }),
 
   unyankVersionTask: task(function* (version) {
-    return version.unyank.perform();
+    return yield version.unyank.perform();
   }),
 });

app/templates/crate/version.hbs

@@ -168,7 +168,7 @@
                   {{ version.num }}
                 </LinkTo>
                 {{moment-format version.created_at 'll'}}
-                {{#if isOwner}}
+                {{#if this.isOwner}}
                   {{#if version.yanked}}
                     <button type="button" local-class="remove-button" {{on "click" (perform this.unyankVersionTask version)}}>Unyank</button>
                   {{else}}