Test related to JENA-500

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1510602 13f79535-47bb-0310-9956-ffa450edef68
Couple of tests that demonstrate injecting blank nodes by ID into parameterized sparql strings

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1510604 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk