Close newly created IMAP folders again. That leads to lots of open files and now even to a crash on exit otherwise.
Close newly created IMAP folders again. That leads to lots of open files and
now even to a crash on exit otherwise.

svn path=/trunk/kdenetwork/kmail/; revision=125087

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