add some ASA support, clean up polling, clean up MAC table generation, add ARP table

git-svn-id: http://www.observium.org/svn/observer/trunk@467 61d68cd4-352d-0410-923a-c4978735b2b8

includes/static-config.php

@@ -3,6 +3,9 @@
 ## ifDescr whitelist (used instead of ifName)
 $config['ifdescr']['IOS'] = true;
 $config['ifdescr']['IOS XE'] = true;
+$config['ifname']['ASA'] = true;
+
+
 
 ## AFI / SAFI pairs for BGP (and other stuff, perhaps)
 $config['afi']['ipv4']['unicast']    = "IPv4";