updates to routing table aren't applied after installation

[Karl-Philipp Richter]

Regardless whether this is a bug or a missing feature it'd be nice if changes to the routing table installed with `fwbuilder` would be applied after installation (by running the necessary commands via SSH) or a useful information dialog would be displayed that a restart of the underlying machine is necessary.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: fwbuilder 5.1.0-4
Uname: Linux 4.0.1-040001-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Jun 6 15:28:41 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-04-02 (64 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: fwbuilder
SystemImageInfo:
 current build number: 0
 device name:
 channel: daily
 last update: Unknown
UpgradeStatus: No upgrade log present (probably fresh install)