[arch-general] drop slim in favor of lightdm

[Christian Hesse]

Hello everybody,

slim has some known security weaknesses (for example it has no separate
greeter process thus the graphical interface is running with super user
privileges) and a lot of open bugs. Additionally it does not support latest
packages (consolekit and friends) out of the box.
Though lately the SVN got some commits and a new version has been released
the arch package has not been updated since it was flagged out of date in
February.

I propose to drop slim from [extra] and replace it with lightdm and
lightdm-gtk-greeter. This is a very active project with responsive upstream
developer. Security is a key feature and it integrates with latest desktop
techniques really well. The AUR package for lightdm has 259 votes at the time
of writing.

Any thoughts on that?
-- 
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"EHCX:;";for(a/*    Chris           get my mail address:    */=0;b=c[a++];)
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