v. 3.0.3-alpha release

fix matplotlib 1.5 in m21_2 also

v 2.1.2

v 2.1 (out of beta)

Release v2.0.11

v. 2.0.10 -- musicxml + durationtuples

fix quodJactatur errors

documentation rebuilt

commit v2.0.0

Release version v.1.9.3