Output window is now automatically resized based on the stitched panorama size. So there is no blank space left on the right of the big panorama image.

Signed-off-by: lolportal <fpalta90@gmail.com>
Added saving the output file to panorama.jpg

Signed-off-by: lolportal <fpalta90@gmail.com>
and therefore changed the default working skale to 100% instead of 50%

Signed-off-by: lolportal <fpalta90@gmail.com>