microsoft/ApplicationInsights-node.js 1.0.8 on GitHub

Use Buffer.from when available #458
Remove Zone artifacts from error stack shown in console #464
Measure cpu usage with process.cpuUsage #461

Important: This changes the way process cpu usage is measured. Previously, sum of user cpu usage was reported, this change uses process.cpuUsage() to measure only this app's usage. In general, the new recorded value will be lower. This only affects process cpu % measurement. Processor cpu % usage metric is unchanged.