set default for omf_friendly, move get_default_serviceclass outside of model for compaitibility with migrations
diff --git a/planetstack/core/models/serviceclass.py b/planetstack/core/models/serviceclass.py
index 3b6ee82..c339b67 100644
--- a/planetstack/core/models/serviceclass.py
+++ b/planetstack/core/models/serviceclass.py
@@ -4,7 +4,11 @@
 from core.models import Site
 from core.models import Deployment
 
-# Create your models here.
+def get_default_serviceclass():
+    try:
+        return ServiceClass.objects.get(name="Best Effort")
+    except ServiceClass.DoesNotExist:
+        return None
 
 class ServiceClass(PlCoreBase):
     name = models.CharField(max_length=32)
@@ -20,13 +24,6 @@
 
     def __unicode__(self):  return u'%s' % (self.name)
 
-    @staticmethod
-    def get_default():
-        try:
-            return ServiceClass.objects.get(name="Best Effort")
-        except ServiceClass.DoesNotExist:
-            return None
-
     def save_by_user(self, user, *args, **kwds):
         if self.can_update(user):
             super(ServiceClass, self).save(*args, **kwds)