Added npm test command to package.json.
Added npm test command to package.json.

Brantone/node-build-monitor,marcells/node-build-monitor,HelloHolyLi/node-build-monitor,HelloHolyLi/node-build-monitor,Brantone/node-build-monitor,marcells/node-build-monitor,HelloHolyLi/node-build-monitor,Brantone/node-build-monitor