Doesn't support actions exposed via D-bus

Contractor doesn't support calling actions via D-bus as opposed to command-line arguments. D-bus is the GNOME and KDE standard, and arguably a much better way to implement such things.

For example, Empathy seems to use D-bus calls for file transfer.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: contractor 0.2-0~r26+pkg4~precise1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic 3.2.27
Uname: Linux 3.2.0-30-generic x86_64
ApportVersion: 2.0.1-0ubuntu13
Architecture: amd64
CrashDB: contractor
Date: Sun Sep 23 13:50:28 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120303)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=ru_RU.UTF-8
SHELL=/usr/bin/fish
SourcePackage: contractor
UpgradeStatus: No upgrade log present (probably fresh install)

Launchpad Details: [#LP1054925](https://bugs.launchpad.net/bugs/1054925) Sergey "Shnatsel" Davidoff - 2012-09-23 10:21:57 +0000