ENYO-3053: Show the Signing key title while loading Phonegap userData.

If a signing key is already defined for the project & Ares is waiting the userData object request then a message containing the name of the defined Signing Key is displayed in the row Signing Key.
If a signing key is not defined for the project & Ares is waiting the userData object request then a message containing only the loading message  is displayed in the row Signing Key.
ENYO-3053: uncomment the AJAX request t instruction.
ENYO-3053: use temp variable to make code more readable
Merge pull request #568 from enyojs/ENYO-3053

ENYO-3053: Show the Signing key title while loading Phonegap userData.