made models use old table names

provider/oauth2/models.py

@@ -81,6 +81,9 @@ class Client(models.Model):
 
         return cls(**kwargs)
 
+    class Meta:
+        db_table = 'oauth2_client'
+
 
 class Grant(models.Model):
     """
@@ -108,6 +111,9 @@ class Grant(models.Model):
     def __unicode__(self):
         return self.code
 
+    class Meta:
+        db_table = 'oauth2_grant'
+
 
 class AccessToken(models.Model):
     """
@@ -165,6 +171,9 @@ class AccessToken(models.Model):
         timedelta = expiration - reference
         return timedelta.days*86400 + timedelta.seconds
 
+    class Meta:
+        db_table = 'oauth2_accesstoken'
+
 
 class RefreshToken(models.Model):
     """
@@ -188,3 +197,6 @@ class RefreshToken(models.Model):
 
     def __unicode__(self):
         return self.token
+
+    class Meta:
+        db_table = 'oauth2_refreshtoken'