Use Locale.ROOT for lower/upper case when the operation is Locale independent.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1524531 13f79535-47bb-0310-9956-ffa450edef68
JENA-534

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1524537 13f79535-47bb-0310-9956-ffa450edef68
Remove unused code.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1524540 13f79535-47bb-0310-9956-ffa450edef68


git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1524543 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk