Add ForbiddenException and some static Errors (original patch from Matt Jacobsen, thanks)

3 jobs for master in 7 minutes and 9 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #137857359
pages

00:05:01

passed #137857358
test

00:07:09

 
  Deploy
passed pages:deploy

00:00:06