Forge output with npm a little verbose

[richarddli]

when running npm install, npm updates the messages in place, and only does a newline when there is a warn or error, e.g.,:

ARN engine [email protected]: wanted: {"node":"0.12.x","npm":">=3.0.0"} (current: {"node":"5.1.0","npm":"3.3.12"})
npm WARN deprecated [email protected]: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated [email protected]: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue

however, Forge does a scroll on every single part of the output:

║ npm http request GET https://registry.npmjs.org/d3-array
║ npm info attempt registry request try #1 at 10:16:29 PM
║ npm http request GET https://registry.npmjs.org/d3-collection
║ npm info attempt registry request try #1 at 10:16:29 PM
║ npm http request GET https://registry.npmjs.org/d3-format
║ npm info attempt registry request try #1 at 10:16:29 PM
║ npm http request GET https://registry.npmjs.org/d3-time
║ npm info attempt registry request try #1 at 10:16:29 PM
║ npm http request GET https://registry.npmjs.org/d3-time-format
║ npm http 200 https://registry.npmjs.org/d3-collection
║ npm http 200 https://registry.npmjs.org/d3-array
║ npm info addNameTag [ 'd3-collection', 'latest' ]