Feature/travis npm ci (#162)
Feature/travis npm ci (#162)

* update travis script to use npm ci and only use one install
iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,iteratec/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor,IteraSpeed/OpenSpeedMonitor