[Inf-IT DAVcl] Week view

A coupld of feature requests for CalDAVzap.

I would like to be able to configure the week view to a different number of weeks. On my big screen I'like to have 4 or 5 weeks instead of 3.

Also, I would like to be able to shift the week view one week at a time. E.g., when showing weeks 23,24,25, clicking on next (or some other button) will show 24,25,26 (instead of 26,27,28).

Thanks, Johan