This edge release updates the proxy-init container to check whether the iptables rules have already been added, which prevents errors if the proxy-init container is restarted. Also, the `viz stat` command now has tab completion for Kubernetes resources, saving you precious keystrokes! Finally, the proxy has been updated with several fixes and improvements. * Added instructions to `build.md` for using a locally built proxy (thanks @jroper!) * Added support for Kubernetes resource aware tab completion to the `viz stat` command * Updated `proxy-init` to skip configuring firewall if rules exists * Fixed `viz uninstall` to delete all RBAC objects (thanks @aryan9600!) * Improved diagnostics for rejected profile discovery * Added the `l5d-client-id` header on mutually-authenticated inbound requests so that applications can discover the client's identity. * Reduced proxy resource usage when there are no profiles * Changed the admin server to assume all meshed connections are HTTP/2 and fail connections when that is not the case * Updated the proxy to require the `l5d-dst-override` header on outbound requests when the proxy is in ingress-mode * Removed support for TCP-forwarding in ingress-mode