Make every OFXAccount have an owner

That way we can split out accounts by the user that created them.
Y'know, like permissions for multi-tenancy

alembic/versions/6b5382ac7616_add_owner_ofxaccount.py

@@ -0,0 +1,26 @@
+"""add owner ofxaccount
+
+Revision ID: 6b5382ac7616
+Revises: 4990a9f1ada3
+Create Date: 2016-06-21 07:12:22.486560
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '6b5382ac7616'
+down_revision = '4990a9f1ada3'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+def upgrade():
+    op.add_column('ofxaccount', sa.Column('owner', postgresql.UUID(), nullable=False))
+    op.create_foreign_key('fk_user', 'ofxaccount', 'users', ['owner'], ['uuid'])
+
+
+def downgrade():
+    op.drop_constraint('fk_user', 'ofxaccount', type_='foreignkey')
+    op.drop_column('ofxaccount', 'owner')