Fix capabilities ConjunctionValidator to return all ANDed validation results not only the first one

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>
Handle Siesta ErrorXO/ValidationErrorXO in sonatypeSumbit action

The fix will mark validation errors from server as in case of restlet1x errors

Signed-off-by: Alin Dreghiciu <adreghiciu@gmail.com>