Allow beehive to run as nginx reverse proxy subdirectory

[deranjer]

Would love to run beehive as a subURL behind nginx reverse proxy instead of needed to do it as a subdomain.

Essentially would need to rewrite however you are serving assets to go at the end of canonical URL.

Currently it fails to write the full canonical URL and you get a blank page.

It is requesting assets from "domain.com/assets" instead of "domain.com/subURL/assets".

Works perfectly fine with a subdomain (most applications do) ie: "beehive.domain.com" works fine.

Not a big deal but would be nice.