If a mailcheck is started while the account is still connecting, schedule a retry once the account reports it is up. This is the same mechanism used by the ListJob in this situation.
If a mailcheck is started while the account is still connecting, schedule
a retry once the account reports it is up. This is the same mechanism used
by the ListJob in this situation.

This fixes an IMAP startup folder appearing empty on KMail start because the
slave is not available yet.

svn path=/trunk/kdepim/; revision=329088

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