feat(full-stack): disable notifications after 3 failures

This stops notifications from firing over and over again if they are repeatedly failing.

[TESTING -> locally with docker compose, DATABASE MIGRATION -> there is a single migration]

Issue: https://www.pivotaltracker.com/story/show/b144646649n

- [ ] It works!
- [ ] Comments provide sufficient explanations for the next contributor
- [ ] Tests cover changes and corner cases
- [ ] Follows Quay syntax patterns and format

data/migrations/versions/dc4af11a5f90_add_notification_number_of_failures_.py

@@ -0,0 +1,29 @@
+"""add notification number of failures column
+
+Revision ID: dc4af11a5f90
+Revises: 53e2ac668296
+Create Date: 2017-05-16 17:24:02.630365
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'dc4af11a5f90'
+down_revision = '53e2ac668296'
+
+import sqlalchemy as sa
+from alembic import op
+
+
+def upgrade(tables):
+  op.add_column('repositorynotification', sa.Column('number_of_failures', sa.Integer(), nullable=False))
+  op.bulk_insert(tables.logentrykind, [
+    {'name': 'reset_repo_notification'},
+  ])
+
+
+def downgrade(tables):
+  op.drop_column('repositorynotification', 'number_of_failures')
+  op.execute(tables
+             .logentrykind
+             .delete()
+             .where(tables.logentrykind.c.name == op.inline_literal('reset_repo_notification')))