fix: allow server updates when installed in /usr/local (#859)
fix: allow server updates when installed in /usr/local (#859)

* fix: allow server updates when installed in /usr/local

fixes #857

* refactor: use list npmServerInstallLocations

SignalK/signalk-server-node,SignalK/signalk-server-node,SignalK/signalk-server-node,SignalK/signalk-server-node