Added support for Generic Tags.  Tags can be applied to Node, Site, Slice, Sliver.  Adjusted relation_name for SliceTags to not conflict with generic tag.
diff --git a/planetstack/core/models/sliver.py b/planetstack/core/models/sliver.py
index 13eb353..44a6af1 100644
--- a/planetstack/core/models/sliver.py
+++ b/planetstack/core/models/sliver.py
@@ -8,6 +8,8 @@
 from core.models import Site
 from core.models import Deployment
 from core.models import User
+from core.models import Tag
+from django.contrib.contenttypes import generic
 
 # Create your models here.
 class Sliver(PlCoreBase):
@@ -22,7 +24,7 @@
     node = models.ForeignKey(Node, related_name='slivers')
     deploymentNetwork = models.ForeignKey(Deployment, verbose_name='deployment', related_name='sliver_deploymentNetwork')
     numberCores = models.IntegerField(verbose_name="Number of Cores", help_text="Number of cores for sliver", default=0)
-
+    tags = generic.GenericRelation(Tag)
 
     def __unicode__(self):  return u'%s' % (self.instance_name)