Replace findProperty and filterProperty with findBy and filterBy

app/assets/javascripts/discourse/components/basic-topic-list.js.es6

@@ -47,7 +47,7 @@ export default Ember.Component.extend({
           target = target.find('a');
         }
 
-        const topic = this.get('topics').findProperty('id', parseInt(topicId));
+        const topic = this.get('topics').findBy('id', parseInt(topicId));
         this.sendAction('postsAction', {topic, position: target.offset()});
       }
       return false;

app/assets/javascripts/discourse/components/composer-editor.js.es6

@@ -50,7 +50,7 @@ export default Ember.Component.extend({
 
         const posts = topic.get('postStream.posts');
         if (posts && topicId === topic.get('id')) {
-          const quotedPost = posts.findProperty("post_number", postNumber);
+          const quotedPost = posts.findBy("post_number", postNumber);
           if (quotedPost) {
             return tinyAvatar(quotedPost.get('avatar_template'));
           }

app/assets/javascripts/discourse/components/d-editor.js.es6

@@ -123,7 +123,7 @@ class Toolbar {
   }
 
   addButton(button) {
-    const g = this.groups.findProperty('group', button.group);
+    const g = this.groups.findBy('group', button.group);
     if (!g) {
       throw `Couldn't find toolbar group ${button.group}`;
     }

app/assets/javascripts/discourse/components/topic-footer-mobile-dropdown.js.es6

@@ -27,7 +27,7 @@ export default Combobox.extend({
     }
 
     this.comboTemplate = (item) => {
-      const contentItem = content.findProperty('id', item.id);
+      const contentItem = content.findBy('id', item.id);
       if (!contentItem) { return item.text; }
       return `${iconHTML(contentItem.icon)}  ${item.text}`;
     };