JENA-726 : Removing deprecated methods (internal).

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1604375 13f79535-47bb-0310-9956-ffa450edef68
JENA-726 : More deprecation cleaning (opVars). Add some deprecations in OutputLangUtils.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1604390 13f79535-47bb-0310-9956-ffa450edef68