pin pinax-invitations

Author: jacobwegner

setup.py

@@ -32,7 +32,7 @@ def read(*parts):
     install_requires=[
         "Django>=1.8",
         "django-reversion>=1.8.1",
-        "pinax-invitations>=4.0.4",
+        "pinax-invitations==4.0.4",
         "unicode-slugify>=0.1.1",
         "Pillow>=2.3.0",
         "django-user-accounts>=1.3",