ENYO-3576: set a new attribute for the object Ares.Model.Project.
ENYO-3576: Initilize the attribute "downloadStatus" of the instance "Ares.Model.Project" when a project is selected.
ENYO-3576: display the status of the package download from the instance of "Ares.Model.Project".
ENYO-3576: Check if the Phonegap Build service is activated in order to update the content of the project attribute "downloadStatus".
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-3576

Conflicts:
	project-view/source/ProjectView.js
ENYO-3576: correct a JsHint warning.
ENYO-3576: Remove a junk spacing.
ENYO-3576: Remove dead code.
ENYO-3576: Remove logs.
ENYO-3576: restored correct version of sub-modules
ENYO-3576: added some comments for future 'fixme'

While implementing ENYO-3687, somes changes will need to be made in those files. Added a fixme comment as reference.
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-3576
Merge pull request #716 from enyojs/ENYO-3576

ENYO-3576: The Download status data are saved in the project's storage representation instead of relying on a static attribute.