move sqlalchemy defaults from booleans to SQL constructs

booleans aren't actually allowed, and quietly do nothing

also default Services.active to true

migrations/versions/0059_set_services_to_active.py

@@ -0,0 +1,23 @@
+"""
+we weren't previously using the services.active column , and by default it was set to false. lets set all services to
+active, so that in the future we can turn it off to signify deactivating a service
+
+Revision ID: 0059_set_services_to_active
+Revises: 0058_add_letters_flag
+Create Date: 2016-10-31 15:17:16.716450
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0059_set_services_to_active'
+down_revision = '0058_add_letters_flag'
+
+from alembic import op
+
+
+def upgrade():
+    op.execute('UPDATE services SET active = TRUE')
+
+
+def downgrade():
+    op.execute('UPDATE services SET active = FALSE')