ENYO-2904: drop broken dependency `node-unzip` (now use `node-zip`+`JSZip`)

* ENYO-2063, ENYO-2904: restore compatibility with node 0.8.x (HEAD, enyojs/ENYO-2904, ENYO-2904)
* ENYO-2904: test `ares-project` against `ares-generator` using `JSZip`

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>