In API Setup and Connexion :

+ added deep-check of token before sending it to the pay :
	. will check if token key is long enough and not null ;
	. will check if token format is valid (3 digits - 3 digits - 3 digits)
+ added getUserProperties to diminish API calls like getUserID() because API is internet dependant
userProperties are stored in .properties file

In Connexion Window :
* adapted code to change for deep-check token