Rename pyklip's dataset.allints to be more descriptive

[semaphoreP]

In pyklip: dataset.allints is supposed to save the original files after KLIP but before rotating the images north up. I would prefer we make it more parallel to dataset.output: call it dataset.output_unrotated and have the same shape as dataset.output.

Since this is currently mainly used by spaceKLIP, we should coordinate this with a change in spaceKLIP.