* Added a new `EvalPool.alignment()` method. This allows to specify an iterable of outcomes that should always be seen by `next_state` even if they have zero count. * The free function `d()` is now simply an alias for `standard()`. * Removed `Die.d()`. * The `@` operator now casts the right side to a `Die` like other operators. * Some internal changes to `EvalPool` algorithm.