Improve syslog (ipv6, cache expire 6 hrs, check IP duplicates).


git-svn-id: http://observium.org/svn/observer/trunk@4220 61d68cd4-352d-0410-923a-c4978735b2b8
Fix syslog for ipv6.


git-svn-id: http://observium.org/svn/observer/trunk@4221 61d68cd4-352d-0410-923a-c4978735b2b8
Fix icon for 'video' device type.


git-svn-id: http://observium.org/svn/observer/trunk@4222 61d68cd4-352d-0410-923a-c4978735b2b8