reporting an event during rendering of lava-kernel-ci-views pages times out after 5 minutes

I think this is the error that's failing to be reported properly:

ERROR:root:Unable to construct breadcrumb URL for view <function per_board at 0x2dc1aa0>
Traceback (most recent call last):
  File "/srv/lava/instances/staging/local/lib/python2.7/site-packages/lava_server/bread_crumbs.py", line 117, in get_absolute_url
    args=[kwargs[name] for name in self.needs])
  File "/srv/lava/instances/staging/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 391, in reverse
    *args, **kwargs)))
  File "/srv/lava/instances/staging/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 337, in reverse
    "arguments '%s' not found." % (lookup_view_s, args, kwargs))
NoReverseMatch: Reverse for 'lava_kernel_ci_views_app.views.per_board' with arguments '()' and keyword arguments '{}' not found.

It's been happening for a while, but (a) it doesn't interrupt page rendering (b) I don't think it's ever actually appeared in sentry and (c) it definitely didn't used to take 300s to not appear in sentry

I think we should send sentry events via celery as the production documentation recommends. This way all of senty is asynchronous (currently only the receiving end) and never interrupts or slows down page rendering.

That makes sense.