vrp: fix error when click for time windowed examples
vrp: visual display of time windows
vrp: visually center demand
higher left is better
bugfix: filtered ending iterator should be filtered
code style
tsp: reduce maximumSubChainSize
UpcomingSelectionIterator: delay createUpcomingSelection() until hasNext()
test for empty child union move selectors
All selector Iterators must not do hasNext() in their constructor: UnionMoveSelector
test cartesian product: empty selectors
All selector Iterators must not do hasNext() in their constructor: CartesianProductMoveSelector