Fix for users.properies response format

user properties should return an object (not collection) Request: /users/229/properties Expected response:

{"birthday":"","socialSecurityNumber":"","internalNumber":"","contractTypeProp":"","lastCompany":"","birthCity":"","birthCountry":"","location":"","personalWebsite":"","computer":"","screen":"","iconsBar":"","mobile":"","boxes":"boo,0,0,0,pro,0,0,0,0","personalNumber":"","externalNumber":"","penalitiesNumber":"","validationDateValue":"2015-07-04","startBooloDate":"2001-03-01","submitDate":"2015-07-04","preValidationDateValue":"2015-07-04","endBooloDate":"","unknown1":"","unknown2":"","unknown3":"","unknown4":"","changePassword":0,"personalAddress":"","subscription":"","skin":"default","preference":"","weekNumber":"","preferedPlanning":"","usersOrder":"","officeNumber":"+380-44-419-24-38","activity":"","role":"","publicSSHKey":"","preferedService":"","preferedTeam":"","visualWidth":"","visualHeight":"","defaultTeam":"","mailAlert":"","favoriteServices":"","favoriteProjects":"","homepage":"index.php","favorites":"","uid":"CUID229","accountNature":1,"statut":"Externe","ldap":0,"mainManager":"","sec1Manager":"","sec2Manager":""}