[hotfix] merging db migration scripts (#2448)

superset/migrations/versions/979c03af3341_.py

@@ -0,0 +1,22 @@
+"""empty message
+
+Revision ID: 979c03af3341
+Revises: ('db527d8c4c78', 'ea033256294a')
+Create Date: 2017-03-21 15:41:34.383808
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '979c03af3341'
+down_revision = ('db527d8c4c78', 'ea033256294a')
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    pass
+
+
+def downgrade():
+    pass