Several Ivan Cleanups of x_client_macro, tvtime,  mozilla, mplayer

Some cleanup of the dovecot policy, adding keys

I think we can remove the hostname policy, it adds little value.  I 
added don't audit sys_admin to dhcpc
which is triggered by hostname being run by dhcp.  Code seems to work 
without allowing this privs.  I
think it would work fine without hostname policy.  I think we could 
probably get rid of consoletype also.

Moved arpwatch out of mta.te

Add syslogng support to syslog.te

Dan

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