updated parsley, default prefix, upgrade note

README.rst

@@ -40,14 +40,13 @@ Upgrading
 Upgrading from 0.2 to 0.3:
 ..........................
 
-If you're using parsley.js < 1.2, make sure to set the ``parsley_namespace`` Meta attribute
-to ``data`` for backward compatibility.
+If you're using parsley.js 1.x, make sure to set the ``parsley_namespace`` Meta attribute
+to ``parsley`` for backward compatibility.
 
 .. code-block:: python
 
     class Meta:
-        parsley_namespace = 'data'
-
+        parsley_namespace = 'parsley'
 
 Usage
 -----

parsley/decorators.py

@@ -67,7 +67,7 @@ def parsleyfy(klass):
 
     def new_init(self, *args, **kwargs):
         old_init(self, *args, **kwargs)
-        prefix = getattr(getattr(self, 'Meta', None), 'parsley_namespace', 'parsley')
+        prefix = getattr(getattr(self, 'Meta', None), 'parsley_namespace', 'data-parsley')
         for _, field in self.fields.items():
             update_widget_attrs(field, prefix)
         extras = getattr(getattr(self, 'Meta', None), 'parsley_extras', {})