adding needed migration files (#573)

lemur/migrations/versions/131ec6accff5_.py

@@ -0,0 +1,28 @@
+"""Ensuring we have endpoint updated times and certificate rotation availability.
+
+Revision ID: 131ec6accff5
+Revises: e3691fc396e9
+Create Date: 2016-12-07 17:29:42.049986
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '131ec6accff5'
+down_revision = 'e3691fc396e9'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('certificates', sa.Column('rotation', sa.Boolean(), nullable=True))
+    op.add_column('endpoints', sa.Column('last_updated', sa.DateTime(), server_default=sa.text('now()'), nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('endpoints', 'last_updated')
+    op.drop_column('certificates', 'rotation')
+    # ### end Alembic commands ###