add a new tab to device -> vlans (#483)

* first steps for vlan tab

* export sort_vlans, use strict/warnings

* update manifest, get worker closer to functioning

* remove ie 9 script & extra ./th

* make it work

* cleanup

* readd internet explorer code

* start for csv output

* move things to debug logging instead of info

* use message which was discussed

* fix for address table sorting

* link os

* final touches thx to ollyg

* fetch origin/master

* VLAN is the preferred style for user interface usage

* does a missing libexpat-dev make travis builds complain?

* Revert "does a missing libexpat-dev make travis builds complain?"

This reverts commit 0cebc66f42708ff0f946213aab4bcbcc1b1b1379.

share/views/ajax/search/port.tt

@@ -4,7 +4,7 @@
       <th>Status</th>
       <th>Name</th>
       <th>Port</th>
-      <th>Vlan</th>
+      <th>VLAN</th>
       <th>Speed</th>
       <th>Last Change</th>
     </tr>