removed local variable that is never read
made min[] a local variable in the loop
just casting to (int) behaves differently for values smaller or bigger than
zero, therefore Math.floor() first
location of the end point was wrong by 1
removed the exclusive flag as it is somewhat confusing and not used, might
be related to the bug in the fusion

refactored start and end >>> min and max. This way it is clear that both
points are always inside. It allows follows the ImgLib2 notation to avoid
confusion.
fixed the bug that resulted in black lines in the overlapping images
reason was that former start was treated as inside, while former end
was treated as outside
moved the ClassifiedRegion and the Interval out of the package containing the
deprecated Stitching code into the Fusion package