dovecot 2.1

[Paul Howarth]

Dovecot 2.1, just introduced (well, 2.1.rc1) in Rawhide, has a new FIFO 
file /var/run/stats-mail, and needs additional policy to create and use it:

# Needed for dovecot 2.1
allow dovecot_t dovecot_var_run_t:fifo_file { read write create open 
unlink };

Paul.