Alphabetize and clean up jazz todo tunes

I accidentally typeset a tune that was on the TODO list but had already been
typeset. So I thought I would clean up the list. I removed all the tunes that
were on the list but already appear in the jazz book.
Merge branch 'todo-tunes' of git://github.com/captbaritone/openbook into captbaritone-todo-tunes

Conflicts:
	doc/TODO_tunes.txt