ROLE changes

change ROLE_SONATA_ADMIN to ROLE_ADMIN to being render after
installation with any user token that have ROLE_ADMIN permission .

because menu and search never shows until you have ROLE_SONATA_ADMIN permission .
or you can add note in documents "after installation you need grand/promote user to these rolls ." 
ROLE_SONATA_ADMIN
ROLE_SUPER_ADMIN