Results 4 issues of Alex Edwards

And change the shebang to `/bin/sh`. See https://github.com/alexedwards/go-reload/pull/7 and https://www.shellcheck.net/.

When bone returns a 405 Method Not Allowed response, it would be good if it could include an [Allow](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Allow) header detailing which methods _are_ permitted. I think it could perhaps...

Fixes https://github.com/go-zoo/bone/issues/68

As per the comments on https://github.com/alexedwards/scs/pull/177, consider supporting custom names for the sessions tables where it makes sense.

help wanted