Added some more things about schroots and cgroups.
Added some more things about schroots and cgroups.

Conflicts:
	manuscript/jsag.tex

fhinkel/tryM2,fhinkel/InteractiveShell,fhinkel/tryM2,fhinkel/InteractiveShell,YueRen/tryM2,YueRen/tryM2,fhinkel/tryM2,antonleykin/InteractiveShell,antonleykin/InteractiveShell,YueRen/tryM2,fhinkel/tryM2,fhinkel/InteractiveShell,fhinkel/InteractiveShell,antonleykin/InteractiveShell