- new methods SCIPcolGetMinPrimsol() and SCIPcolGetMaxPrimsol()
- new method SCIPgetColRedcost()
- new method SCIPvarGetRootRedcost()
- new methods SCIPgetLPRootObjval(), SCIPgetLPRootColumnObjval(), and SCIPgetLPRootLooseObjval()
- new methods SCIPchgVarLbRoot() and SCIPchgVarUbRoot()
- new method SCIPinRepropagation()
- new methods SCIPgetAvgPseudocostScore(), SCIPgetAvgPseudocostScoreCurrentRun(), SCIPgetAvgConflictScore(),
  SCIPgetAvgConflictScoreCurrentRun(), SCIPgetAvgInferenceScore(), SCIPgetAvgInferenceScoreCurrentRun(),
  SCIPgetAvgCutoffScore(), and SCIPgetAvgCutoffScoreCurrentRun()
- new methods SCIPaddDialogInputLine() and SCIPaddDialogHistoryLine()

plugins:
- new primal heuristic "shifting"
- new separator "redcost" which replaces the internal reduced cost strengthening
- new propagator "rootredcost" which applies reduced cost fixing at the root node whenever a best new primal solution
  was found

parameters:
- new parameter conflict/lpiterations
- removed parameter propagating/redcostfreq, because reduced cost strengthening is now an external separator plugin
- new parameters branching/relpscost/conflictweight, branching/relpscost/inferenceweight,
  branching/relpscost/cutoffweight, and branching/relpscost/pscostweight
- new parameter conflict/settlelocal

features:
- slightly changed priorities of constraint handlers
- command line syntax changed to support batch modus without piping stdin with "<" or "|" operators

fixed bugs:
- fixed bug in crossover heuristic with negative timelimit
- fixed bugs resulting from inactive general integer variables being member of the variable bounds array of a variable