Implement "apply" / "cancel" capabilities

[levipage]

It would be great to have an apply/cancel feature. The cancel would reset the dates back to the previous selection. A way to automatically cancel the selection when they click away would also be nice. When the apply feature you could also possibly make it where if I want a single date I just click a single date and it populates both the start and end date. I would then click apply. This would prevent me from clicking the same date twice. I would default this behavior anyway unless they have the autoclose enabled. There shouldn't be a need to click the same date twice.

[fglueck]

Yes, I miss this feature, too