pfSense

Attempt to Eject the CD device on 3G sticks for Huawei and ZTE devices.

Act on wireless interfaces too for linkup.
Redmine ticket #2440

Merge pull request #111 from vizvayu/bug2374

Fix of bug #2374 "When entering values in firewall rules leading and trailing spaces are not deleted" bis

Fix variable test

Initialize variable if it's not set

This command works better with Huawei modems. Needs more testing

Make sure we don't accidentaly clobber the v4 dns servers with empty fields from v6

Prevent duplicate gateways from showing up if the interface is down. Redmine ticket #2442

Set the retry value to 60 seconds, this is not attempts, this is seconds before it needs a reply. So if the DHCP server was any sort of slow it would fail to aquire a lease. This was true for my wireless network at home. Plus, on various other lossy links, even cable modems this could be true....

Add the PPP automatic interface type. This would show the _PPP gateways.