Extended BurnishedRhythmMaker.

These four rhythm-makers will be collapsed into a single class:

    * BurnishedRhythmMaker
        * DivisionBurnishedTaleaRhythmMaker
        * OutputBurnishedTaleaRhythmMaker
        * TaleaRhythmMaker

This will take a few more commits. This will have to be explained in the 2.15
change log. This will also clear up the structure of the rhythmmakertools
package considerably.