[kronolith] partial hour appointments don't show up as a busy hour in freebusy

[Chris Stromsoe]

If I make an appointment that lasts from XX:00 to XX:50, the hour shows up 
as free in my freebusy, when really it should show up as busy.  This is 
with Kronolith 2.1.4.  Is this a bug or intentional behavior (since there 
is 10 minutes of time "free" in the hour)?

-Chris