This includes a hack to preserve humbug/backends.py as a symlink, so
that we don't need to regenerate all our old sessions.
(imported from commit b7918988b31c71ec01bbdc270db7017d4069221d)
The new nginx configuration file needs to be copied to
/etc/nginx/humbug-include and nginx needs to be restarted when this
commit is deployed.
(imported from commit 6c43f3c2c7a6acee6a852c672c96a38bda01dd0d)
This means all GET parameters were chopped off previously in local testing.
Nginx does pattern matching so this is not a problem on staging.
(imported from commit 25a28155b70d168228ca793fc0122b2ebea408e9)
We can't rely on the builtin exception printing, because killpg will kill the
process before that happens.
(imported from commit e7db6a39e0549e21653b4a705d2278eb3dc7b2d4)