MATSim Code

do not compute bound for plans known infeasible

remove unecessary loops

remove all log.trace statements.

It makes the code harder to read

remove need of a map of PersonRecords by adding fields to PlanRecord

no need to test set intersections in weight estimation anymore

all is done with the "isStillFeasible" flag

move some code in helper methods

no set of allocated persons at each step anymore in buildPlanString

performance improvement: decrease the number of redundant set intersection tests

assertions are here to check that both methods are actually equivalent.
As a result, the improvements in performance happen only when assertions
are disabled.

rework a little searchForCombinationsWithoutForbiddenPlans