(2) Can now change the overlay color using buttons on the "View" menu, and default overlay colors are chosen when the user loads images in "readImages.m"; Fixed bug where you could not view the overlay or coregistration of lung and body images of different sizes (updateImagePanels.m now resizes the lung image to the size of the body image).
Merge branch 'Steven' of https://github.com/tomsitter/HypPo_Lung into Steven