Add missing parse() operation.
Expose the determination of language algorithm.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1509633 13f79535-47bb-0310-9956-ffa450edef68
Un-'final' class and expose the internal state to subclasses.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1509634 13f79535-47bb-0310-9956-ffa450edef68
JENA-497
Create a proper dummy dataset for general SPARQL query.
Improve conneg when loading data via daatset description or protocol parameters.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1509639 13f79535-47bb-0310-9956-ffa450edef68


git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1509643 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk