ENYO-2440: Use new `Service#getServiceId()` as package landing folder

Tested on ChromeCanary/OSX

* ENYO-2440: replace `Service#getId()` by `Service#getServiceId()` (HEAD, enyojs/ENYO-2440, ENYO-2440)
* ENYO-2440: Use new `Service#getId()` as package landing folder (origin/pr/338)

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>