Fixed bug when time is HH:23

Fixed bug that caused watch to say e.g. "fem i halv ni" when time is 09:23 (should have said "fem i halv ti").
Changed text when time is HH:33-HH:36 to say "over halv" instead of "o halv", since this fits with the smaller font.
Merge pull request #1 from andreasschmidtjensen/patch-1

Fixed bug when time is HH:23