Initialize (executing the constructor) for the PGNodeModule needs to be

called while initialing the CollectionNodeModule, as
super(..).__init__(..) does not call __init__ function of all parent
classes. Please refer to method resolution order (MRO) in python for
more information.

This patch also includes some typo resolution in PGNdoeModule. Also,
removed the AddAttr(..) at the moment, because - it is not going
anywhere at the moment.

web/pgadmin/browser/collection.py

@@ -11,9 +11,9 @@ import six
 from abc import ABCMeta, abstractmethod
 from flask import url_for, render_template
 from flask.ext.babel import gettext
-from pgadmin.browser.utils import PgAdminModule, PGChildModule
+from pgadmin.utils import PgAdminModule
+from pgadmin.browser.utils import PGChildModule
 from pgadmin.browser import BrowserPluginModule
-from pgadmin.browser.utils import PGChildNodeView
 
 @six.add_metaclass(ABCMeta)
 class CollectionNodeModule(PgAdminModule, PGChildModule):
@@ -25,11 +25,14 @@ class CollectionNodeModule(PgAdminModule, PGChildModule):
     def __init__(self, import_name, **kwargs):
         kwargs.setdefault("url_prefix", self.node_path)
         kwargs.setdefault("static_url_path", '/static')
-        super(CollectionNodeModule, self).__init__(
-                                            "NODE-%s" % self.node_type,
-                                            import_name,
-                                            **kwargs
-                                            )
+
+        PgAdminModule.__init__(
+            self,
+            "NODE-%s" % self.node_type,
+            import_name,
+            **kwargs
+            )
+        PGChildModule.__init__(self)
 
     @property
     def jssnippets(self):