Warning about critical code changes

[Matthias Klumpp]

Hi!
With the next commit, I will introduce some changes which will heavily
influence the security of all Listaller modules.
We have code to determine if user is root or not. This is discovered
automatically. Because we will now have the PackageKit deamon doing some
things for Listaller, we need to set manually if user is root.
So I will remove the detection code from liblistaller and move it to other
places. Until all the changes are made and all modules use the new API,
Listaller will be extremely unstable. It also might do some dangerous
actions as root. (I don't think it does, but this is possible)
The changes heavily affect Listaller's security model and the stability of
all core modules, so please be careful with the code during the next weeks!
Regards
Matthias