Removed QuerySpecification.

Full switch to new Sparql parser, GroundTruthSpec runs again already.
Allowing optional dot at end of last TP.
Removed unnecessary import.
Fixed test and removed println.
Renamed and fixed SparqlSpec.
First untested draft of ORDER BY with LIMT.
Using faster decode.
Using array for string decoding instead of map.
Added test for UNION.
Fixed ORDER BY plus LIMIT, added test case.
Actually fixed ORDER BY + LIMIT, removed prints.
Centralized variable id to decoding index mapping.
Merge branch 'switch-to-sparql'