Put the image stack process into the self.threadpool (QThreadPool).
Put the image stack process into the self.threadpool (QThreadPool). Created progress callback and now the user gets feedback.
Compiled version of this works, but there is an error in the threading process. Looks like the ImageStackTask is not sending signals correctly and is putting stuff out in a different thread. Pushing what I have, but will come back nad try to fix it.
Also fixed the image_stack memory issue that was causing temp files to not be deleted. Closes #31 (closed)