Improved handling of program termination while background mail checking is in progress.
Improved handling of program termination while background mail checking is in progress.

svn path=/trunk/kdenetwork/kmail/; revision=46958

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