Provide a command line tool replacement for blurring an app

 * Blurring from within kdesk gives us problems when processing hooks,
   a command line tool makes it simpler and isolated. When it integrates
   properly we will remove the "kdesk -b" option.

 * Includes a commented code which effectively blurs the complete desktop
   including the taskbar and icon, however this needs more work.
installation of kdesk-blur binary
Merge pull request #58 from KanoComputing/blur-app

Provide a command line tool replacement for blurring an app