Avoid the dialog that provides the option to run the jobs in the background

[reprogrammer]

When Cascade initiates the jobs to compute the error/change tree, it open several dialogs that ask the user if he wants to run the job in the background. I tend to check the box that says always run the job in the background and then push the run in the background button. However, I have to repeat this process several times. I find it annoying. Instead, we should run the jobs in the background but open the "Progress" view so that the user can see the jobs in progress (issue #39).