Make the GUI load the function name/inputs properly, and re-enable close button.

The close button now does what it used to.  Also fix loading the function name/function
inputs.


git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/branches/TableTool_refactor@8786 57e6efec-57d4-0310-aeb1-a6c144bb1a8b