gnomecal week view starts on monday

[Aldy Hernandez <aldy uaa edu>]

i've noticed that the week view on gnomecal always starts on monday,
even if i specify that weeks should start on sunday in the
preferences.

is this the correct behavior, or is this a bug?  i'd be glad to fix it
if this isn't the correct behavior because it's rather annoying to me.

Aldy