fedimg ansible files, take 2
    
    add a fedimg.cfg template
    
    add comment about unused config vars
    
    need check for denyhosts and fas_client needs to be before nagios_client
    
    maybe this template setup is proper?
    
    fedmsg.d/ template
    
    fedimg.cfg should be owned by fedmsg and have more strict perms
    
    Signed-off-by: David Gay <oddshocks@riseup.net>