interop with ember-fast-cli

[lifeart]

trafficstars

Currently, ember-fast-cli has ability to execute commands, passing it to endpoint, and endpoint created druring project startup and available in node_modules/ember-fast-cli/meta.json file https://github.com/lifeart/ember-fast-cli/blob/master/index.js#L168

Using this approach, we able to send any cli command and get execution results back (example: https://github.com/lifeart/ember-fast-cli/blob/master/lib/index.html#L74)

[rajasegar]

Sounds good to me @lifeart Will start working on this asap. Meanwhile if you can spare some free time, would appreciate a PR for the same.