This is less important, and I'm not sure what I really want.
But grouping on the current hour, current day, and then perhaps by week after that.
Could be made smarter by checking the dates and see what would be most appropiate.
Could also just be a few hardcoded versions as above.
Could also be handled with some checkboxes in some way.
Related to #37
Add a similar version for grouping by date.
This is less important, and I'm not sure what I really want.
But grouping on the current hour, current day, and then perhaps by week after that.
Could be made smarter by checking the dates and see what would be most appropiate. Could also just be a few hardcoded versions as above. Could also be handled with some checkboxes in some way.