ENYO-2562: integrate new `ares-generator` interface

* 29d2312 ENYO-2562: use master branch of ares-generator (HEAD, origin/ENYO-2562, ENYO-2562) 6 minutes ago [Francois-Xavier KOWALSKI]
* a3d33e1 ENYO-2562: integrate new `Generator#generate()` interface 9 minutes ago [Francois-Xavier KOWALSKI]
* 9551d6b ENYO-2562: run `jshint` under `npm test` 2 hours ago [Francois-Xavier KOWALSKI]

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>