Refactored BurnishSpecifier initializer. CHANGE.

OLD #1:

    BurnishSpecifier(
        burnish_each_division=True
        lefts=...
        middles=...
        rights=...
        left_lengths=...
        right_lengths=...
        )

NEW #1:

    BurnishSpecifier(
        lefts=...
        middles=...
        rights=...
        left_lengths=...
        right_lengths=...
        )

OLD #2:

    BurnishSpecifier(
        burnish_outer_divisions=True,
        lefts=...
        middles=...
        rights=...
        left_lengths=...
        right_lengths=...
        )

NEW #2:

    BurnishSpecifier(
        lefts=...
        middles=...
        rights=...
        left_lengths=...
        right_lengths=...
        outer_divisions_only=True,
        )

NOTE: current scores should be adjusted.

CHANGE: should be noted in the 2.16 change log.