just indententation fixes
for some reason, I just need goalMessage.image.
and, test client now includes full segment service call
adding comments & debug info
merge
removing unused code; fixing typo
whoops. left this one contex->context typo fix out of prev commit.
Removing more unused code; renaming confusing variables
modifying the ImageViewer to always put the image at the background
PixelEditor now uses the new ImageViewer
BoundingBox is now removed for subsequent calls
updating client to default to grabcut segmentation; updating comments