Trim title in editor on blue/focusOut

closes #3040, fixes #3038
- Properly trim title
- Re-add casper test/adjust where necessary
- Rename gh-focus-input component

ghost/admin/components/gh-focus-input.js

@@ -1,7 +0,0 @@
-var FocusInput = Ember.TextField.extend({
-    becomeFocused: function () {
-        this.$().val(this.$().val()).focus();
-    }.on('didInsertElement')
-});
-
-export default FocusInput;

ghost/admin/components/gh-trim-focus-input.js

@@ -0,0 +1,13 @@
+var TrimFocusInput = Ember.TextField.extend({
+    setFocus: function () {
+        this.$().val(this.$().val()).focus();
+    }.on('didInsertElement'),
+
+    focusOut: function () {
+        var text = this.$().val();
+
+        this.$().val(text.trim());
+    }
+});
+
+export default TrimFocusInput;

ghost/admin/models/post.js

@@ -4,7 +4,7 @@ var Post = DS.Model.extend(ValidationEngine, {
     validationType: 'post',
 
     uuid: DS.attr('string'),
-    title: DS.attr('string'),
+    title: DS.attr('string', {defaultValue: ''}),
     slug: DS.attr('string'),
     markdown: DS.attr('string', {defaultValue: ''}),
     html: DS.attr('string'),

ghost/admin/templates/editor/edit.hbs

@@ -1,6 +1,6 @@
 <header>
     <section class="box entry-title">
-        {{gh-focus-input type="text" id="entry-title" placeholder="Your Post Title" value=title tabindex="1"}}
+        {{gh-trim-focus-input type="text" id="entry-title" placeholder="Your Post Title" value=title tabindex="1"}}
     </section>
 </header>