ENYO-1891, ENYO-1892: un-couple Ares from PhoneGap Build

when the `bdPhonegap` is not instantiated by `ide.json`:

- No longer crash
- Do not setup PhoneGap Build in new projects
- bdPhoneGap still does not work behind non-transparent HTTP/S proxies

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>