Improved InciseSpecifier._attribute_manifest.
Improved Talea._attribute_manifest.
Added TupletSpellingSpecifier.simplify_tuplets property.

This property instructs rhythm-makers to simplify tuplets if those tuplets
contain only rests, or contains notes all in the same logical tie.
Integrated TupletSpellingSpecifier.simply_tuplets into RhythmMaker.
Removed diagnostic print statements from RhythmMaker.
Improved EvenDivisionRhythmMaker._attribute_manifest.
Made TaleaRhythmMaker more robust.
Added more default divisions for RhythmMaker.__illustrate__().
Selection now hashes on its type and its contents.
Extended RhythmMaker._simplify_tuplets().
Merged master.

Conflicts:
	abjad/tools/rhythmmakertools/RhythmMaker.py