Merged regressiontests and modeltests into the test root.

tests/model_package/models/article.py

@@ -0,0 +1,11 @@
+from django.contrib.sites.models import Site
+from django.db import models
+
+
+class Article(models.Model):
+    sites = models.ManyToManyField(Site)
+    headline = models.CharField(max_length=100)
+    publications = models.ManyToManyField("model_package.Publication", null=True, blank=True,)
+
+    class Meta:
+        app_label = 'model_package'