TODO: X-Weave-Alert

[jedie]

https://wiki.mozilla.org/Labs/Weave/Sync/1.0/API#X-Weave-Alert

Find a way to easily pass error messages from the views to the
weave_render_response decorator to process them there.

Add try/except block around decorated function call to catch Weave exceptions and
feed them into X-Weave-Alert.
Currently in development only but it works.

(original: http://code.google.com/p/django-weave/issues/detail?id=3 )