Disable the finish button when clicked, to prevent user from pressing it  repeatedly.
Disable the finish button when clicked, to prevent user from pressing it 
repeatedly.

svn path=/trunk/KDE/kdepim/; revision=823501

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi