VBID-2209: Format percentages with two decimal places.

Change-Id: I91a359c5811d6245811a4c84624e9fe369ee03f7
on form fail, show errors and then reject

- reject local deferred and notify on form.deferred after errors are shown
- also emit a 'failed' event

Change-Id: I2d4eabf29a5f242843ec63c4adfd9112067be765