Use 0% by default when stitching from metadata about stitching HOT 7 CLOSED

I think this is a good idea, but @StephanPreibisch: do you agree that the default overlap should become 0% when stitching from metadata? I am not aware of any systems that provide such metadata but would still benefit from additional overlap, but maybe there are some...

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I do not understand, why would you use the Stitching if there is no overlap anyways, you just need to arrange the tiles then ... then the Stitching does quite some overhead and should maybe not be used, or?

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Ah I get it now, ok, yes, I agree, the coordinates contain the expected overlap already ... yes, it should be by default 0 when reading from metadata

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I did set it to 0%, it is already a different number than the "traditional" overlap, it is called "Increase overlap by" ... but if 0% works better, great.

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Thanks @StephanPreibisch! For reference, the relevant change is a8090c7.

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how do you put that into the message? Just copy&paste the link of the commit? a8090c7
Yes, great :)

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@StephanPreibisch: Yep. For more deliciousness see the docs.

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