Add TupleBuilder for making Tuples.  Reformat Tuple.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1536706 13f79535-47bb-0310-9956-ffa450edef68
Typo

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1536707 13f79535-47bb-0310-9956-ffa450edef68