Removed TODO markers improving handling of string functions, SPARQL parsing corner cases.
Added support to reflect ORDER BY direction in produced algebra tree.
Reduce adjacent BGP filters into a single logical-and filter.
Fixed SPARQLTestHarness output of TAP results to be on stdout and properly increment test numbers.
Only register GTWSPARQLTestHarnessURLProtocol mock class if a test has has SERVICE manifest data.
Unregister GTWSPARQLTestHarnessURLProtocol mock class after every test.