GUI - analyses - run as temporary output then rename

[GoogleCodeExporter]

What steps will reproduce the problem?
1.  Run an analysis which overwrites and existing analysis.
2.  Cancel the analysis.  


Ideally the system will reinstate the original analysis on cancel.  Currently 
it deletes it before starting the new analysis.  

The solution is to add the new analysis using a temporary name, and only delete 
the old analysis on successful completion.

This also has the advantage that any optimisations which use the existing 
analysis can kick in since it still exists.  

The downside is that more memory is needed, but in most cases this is not a 
problem.  The exceptions are cluster analyses which large matrices.

Original issue reported on code.google.com by shawnlaffan on 15 Mar 2014 at 4:25