added center call into ListOfStudents & improved string readout for Centers & User objects
better than quietly failing a try catch
Added play all to reading blacks
Merge branch 'dev' of https://github.com/peachproductions/unitsofsound into dev
fiexed spelling test
toeing and scoring for dictation completed
Merge branch 'refs/heads/dev' into preview
Merge branch 'preview' of https://github.com/peachproductions/unitsofsound into preview