Pull Request for Issue894: Calling delete versus deleteLater

Changed all available instances of calls to the delete operator on QObjects to deleteLater() functions calls. Ran on SGM Acquaman. Everything starts up. Cannot scan beamline right now, but opening and closing scans works. Running motor move actions in the workflow also works.
I'll have to test this.  Although it shouldn't be a problem.  I do want to make sure that the application shuts down appropriately.