Improve the subproject shift move by better aligning the ranges.
Precedence relations tracker can now sum the delays between jobs.
Rearrange subproject shift intervals.
Re-benchmark CH.
Replace additional score guides since the algorithm now performs better
without them.
Fix using release date where it made no sense.
Swap move hasn't been useful for a while.
SubprojectShift -> ChainShift
Little cleanup in the ChainShift move factory.
More precise allocation difficulty comparator.
Self-regulating start date range.
Penalize bigger delays more.
Add subcritical optimizing move.
Limit everything by a certain right boundary.
Self-regularing moves harmful now that the problem has a right bound.
Prevent most of the corrupt renderings.

Solutions are changed during rendering. Reduce the incidence of this by
cloning the solutions and having the data set created from them.
Tango now static.
Shorter names in the chart.
Better work with layouts.
Add move to remove gaps from schedule.