Removed unnecessary consort import test.
Migrated test/* into tools/test/.
Cleaned up TimeManager.
Implemented MusicSpecifier attachment in TimeManager.
Implemented attack point collection in TimeManager.
Cleaned up names and diagnostics in TimeManager.
Cleaned up diagnostics in TimeManager.
Cleaned up TimeManager.
Removed unused "scores" property from SegmentSession.
Cleaned up code.
Improved meter finding in TimeManager.
Made debugging easier.
Added diagnostics to TimeManager.
Replaced "voice_name_abbreviations" with "context_name_abbreviations".
TimeManager now creates missing TimeSignatureContexts.
Added "include_stylesheets" property to SegmentMaker.
Wrote SegmentMaker.__call__() tests.
Renamed SegmentMaker.include_stylesheets to omit_stylesheets.
Improved TimeManager meter finding and timespan splitting.
Wrote SegmentMaker.__call__() tests.