#83 Factory does not find correct constructor

[Kal Ahmed]

The Factory class locates the wrong constructor when
invoked on a class with multiple constructors with
different numbers of parameters. In this case, the
org.tm4j.vtl.comparators.ResultsComparator class has
constructors:

ResultsComparator(UnaryFunction) and
ResultsComparator(UnaryFunction, Comparator)

Using the factory for Velocity as:

$factory.create("org.tm4j.vtl.comparators.ResultsComparator",
$extractor)

Results in an error message saying that the constructor
was invoked with the wrong number of arguments.