TimeRange next and prev methods now return a reference to self so that they can be chained with other methods.
TimeRange next and prev methods now return a reference to self so that they can be chained with other methods.

dpshelio/sunpy,dpshelio/sunpy,mjm159/sunpy,dpshelio/sunpy,mjm159/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy