add submit/withdraw functionality to chords/show pages
add submit/withdraw functionality to keys/show pages
add chordnotes, adding/removing notes from chords is working but without ajax
adding and removing notes to/from chords with dropdown box is working
add keychords and allow for adding and removing chords from keys
working on home page, key_finder functionality
update home page, add published_only filter to chords being added to keys, update seeds.rb