valueRangeProvider: improve error message
javadocs
PLANNER-160: ValueRange interface prototype + IntValueRange + test
PLANNER-160: ListValueRange + test
PLANNER-160: comment
PLANNER-160: CompositeValueRange
javadoc
PLANNER-160: NullableValueRange
PLANNER-160: NullableValueRange
PLANNER-160: hook in the ValueRange's into the Selectors and Descriptors
simplify createSolver() method in examples
PLANNER-160: BigDecimalValueRange
PLANNER-160: DoubleValueRange + fix empty iterator bugs
PLANNER-160: improve tests
better error message
PLANNER-160: EmptyValueRange
javadoc
introduce ValueRangeFactory to keep the public API minimal
Move Descriptor classes into descriptor package + Move value range implementation classes into impl
PLANNER-160: docs