Updates ember-keyboard configurations to be more flexible (ember-learn#288)

Author: dbollinger

addon/components/docs-header/search-box/component.js

@@ -17,10 +17,11 @@ export default Component.extend(EKMixin, {
 
   query: null,
 
+  keyboardActivated: true,
+  
   didInsertElement() {
     this._super();
 
-    this.set('keyboardActivated', true);
     this.get('fetchProject').perform();
   },
 

addon/components/docs-header/search-results/component.js

@@ -19,11 +19,11 @@ export default Component.extend(EKMixin, {
   query: null, // passed in
   selectedIndex: null,
 
+  keyboardActivated: true,
+  
   didInsertElement() {
     this._super();
 
-    this.set('keyboardActivated', true);
-
     // Start downloading the search index immediately
     this.get('docsSearch').loadSearchIndex();
   },

addon/components/docs-keyboard-shortcuts/component.js

@@ -20,9 +20,7 @@ export default Component.extend(EKMixin, {
 
   isShowingKeyboardShortcuts: false,
 
-  activateKeyboard: on('init', function() {
-    this.set('keyboardActivated', true);
-  }),
+  keyboardActivated: true,
 
   goto: on(keyUp('KeyG'), function() {
     if (!formElementHasFocus()) {

addon/components/docs-viewer/component.js

@@ -39,11 +39,7 @@ export default Component.extend(EKMixin, {
 
   classNames: 'docs-viewer docs-flex docs-flex-1',
 
-  init() {
-    this._super();
-
-    this.set('keyboardActivated', true);
-  },
+  keyboardActivated: true,
 
   willDestroyElement() {
     this._super(...arguments);