Merge pull request #11 from samselikoff/patch-1

document hasChanges

Author: stefanpenner

README.md

@@ -25,10 +25,13 @@ buffer.set('firstName', 'Kris');
 buffer.get('firstName'); // => 'Kris'
 buffer.get('content.firstName'); // => 'stefan'
 
+buffer.get('hasChanges'); // => true
+
 buffer.applyBufferedChanges();
 
 buffer.get('firstName'); // => 'Kris'
 buffer.get('content.firstName'); // => 'Kris'
+buffer.get('hasChanges'); // => false
 
 buffer.set('firstName', 'Luke');
 buffer.get('firstName'); // => 'Luke'