removed unused use-statement (#31)
SPARQL query rewriter is created only once now (#31)
added class stub for SPARQL -> SQL rewriter (#31)
refactoring: renamed class (#31)
added constructor signature (#31)
added test case stub (#31)
added comments (#31)
implemented tests (#31)
fixed test (#31)
do not use undefined variable...
do not use variable that does not exist...
fixed documented type
fixed documentation of return type (#31)
implemented wrapper (#31)
added test for nested patterns (#31)
parser is created only once now (#31)
documented usage of PARALLEL hint (#31)
fixed bug: options are quoted now; moved quoting logic into buildSql() method (#31)
connector uses SPARQL wrapper now (#31)