[snowy] Support hiding note and notebook template notes

[Jeff Schroeder <jschroeder src gnome org>]

commit 7f0ab829f677a5d91d5b24dc6181a2519e25a934
Author: Jeff Schroeder <jeffschroeder computer org>
Date:   Sun Dec 26 16:36:44 2010 -0800

    Support hiding note and notebook template notes

 notes/managers.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/notes/managers.py b/notes/managers.py
index b41ce66..f7847bb 100644
--- a/notes/managers.py
+++ b/notes/managers.py
@@ -18,9 +18,11 @@
 from django.db import models
 
 class NoteManager(models.Manager):
-    def user_viewable(self, request_user, author):
+    def user_viewable(self, request_user, author, templates=False):
         notes = self.filter(author=author)
         if request_user != author:
             # Public notes only
-            notes = notes.filter(permissions=1) 
+            notes = notes.filter(permissions=1)
+        if not templates:
+            notes = notes.exclude(tags__name="system:template")
         return notes