This commit addresses issue 1599 as well as introduces some other changes suggested by Brian after reviewing the SWAED guidelines:

- Changes how buttons appear for the install, uninstaller and upgrader.  The Cancel button has been moved from the ButtonPanel to the ProgressPanel along side the progress bar for applications that are cancelable.  Right now this only includes the upgrader.  The installer before this commit allows the user to press a Close button which prompts the user before exiting.  However the installer leaves its files behind currently when canceled so I have not implemented the 'cancelable' code as part of this commit.  With this commit the installer just displays a disabled Close button while running which is enabled after progress stops (like the uninstaller). 

- All applications now display a disabled Close button at the bottom which becomes enabled after the progress has finished or been canceled.

- Adds the Launch Status Panel command button to the final screen for the upgrader.

- Changes the end state inline alert from error to info when an upgrade is canceled.