ENYO-2724 : the the attributs of phonegap parameters defined in "project.json" file are now automaticaly charged in the display of the Phonegap build UI.

This commit also contains some refactoring of the code.
Merge branch 'ENYO-2403' of github.com:enyojs/ares-project into ENYO-2403
ENYO-2724: clean some log instructions.