Review Request: facePerm is a KDM option, unrelated to the user setting his face (for other apps)

[Ralf Jung]

Hi,

> No tabs, 4 spaces instead.
> 
> http://techbase.kde.org/Policies/Kdelibs_Coding_Style
Almost the complete main.cpp is using tabs currently (except for 
KCMUserAccount::decodeImgDrop, which uses 2 spaces) so I used it for the two 
lines I added. Is that okay, or am I supposed to use 4 spaces nevertheless?

Kind regards,
Ralf