Add akanda-router-api-server init script and remove rc.local since we no longer
need it.
Update PIDFILE to correct location and make stop/start/status use it
Add custom bird6 init script with support for "status"
Update pid file locations for router-api-server and akanda-metadata-proxy
Merge pull request #79 from jordant/linux

Init script changes for bird6/akanda-metadata-proxy and akanda-router-api-server