Rewriting core_tests to use unittest, also added a few tests and translated them to follow pylons testing style.
Porting elements_tests to unittest framework.
Porting notes tests to unittest test cases.
Ported write_midi tests to unittest.
Making lilypond tests run in nose. They could use a bit more refactoring to get them down to one assertion per test.
Merge branch 'master' of https://github.com/jtauber/sebastian

Conflicts:
	sebastian/midi/write_midi.py

Merge conflict around kwargs added to write call.
Adding sean to Authors file.
Merge pull request #18 from smcq/master

Run unit tests under nose