merging pull-request #187, set log format for dovecot in froxlor config and updated German translations

Signed-off-by: Michael Kaufmann (d00p) <d00p@froxlor.org>

templates/misc/configfiles/ubuntu_precise/dovecot/etc_dovecot_conf.d_01_mail_stack_delivery.conf

@@ -13,6 +13,11 @@ protocol imap {
         mail_plugins = quota imap_quota
         mail_max_userip_connections = 10
 	imap_client_workarounds = delay-newmail
+	
+	# IMAP logout format string:
+	#  %i - total number of bytes read from client
+	#  %o - total number of bytes sent to client
+	imap_logout_format = in=%i out=%o
 }
 
 # POP3 configuration
@@ -21,6 +26,19 @@ protocol pop3 {
         pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
 	pop3_uidl_format = UID%u-%v
 	mail_plugins = quota
+	
+	# POP3 logout format string:
+	# %i - total number of bytes read from client
+	# %o - total number of bytes sent to client
+	# %t - number of TOP commands
+	# %p - number of bytes sent to client as a result of TOP command
+	# %r - number of RETR commands
+	# %b - number of bytes sent to client as a result of RETR command
+	# %d - number of deleted messages
+	# %m - number of messages (before deletion)
+	# %s - mailbox size in bytes (before deletion)
+	# %u - old/new UIDL hash. may help finding out if UIDLs changed unexpectedly
+	pop3_logout_format = in=%i out=%o top=%t/%p retr=%r/%b del=%d/%m size=%s
 }
 
 # LDA configuration
@@ -50,4 +68,3 @@ service auth {
     group = postfix
   }
 }
-