Upstart -> systemd
wpa_supplicant: Use the nl80211 and wext drivers by default

This should make wpa_supplicant work out of the box on newer and older
kernels.
Fix help message
Blacklist the cirrusfb kernel module
unionfs: Increase the open file limit

The default (1024) is way too low, e.g. to start KDE on the
installation CD.
Git shortrevs are 7 characters
Fixing the description of memtest86. It's not memtest86+.

Noticed by abogani@freenode
stage-1: Don't create a log file in $out
Work around a bug in unionfs

Unionfs cannot delete directories that contain open deleted files.
This broke a Nix test.

http://hydra.nixos.org/build/3843354
Fix the fix of the description of the memtest86 option
Generate share/glib-2.0/schemas/gschemas.compiled in system-path.

This is required to create a gschemas.compiled file with content
from all gschemas. Otherwise, gschemas.compiled will be taken
from a random package, and gsettings programs will not find what
they are looking for. I had to add this to get NetworkManager-applet
to work. You'll also have to add share/glib-2.0 to the pathsToLink
list.

Generating this in the activation script (along with gtk icons
etc), is not the nicest solution. But I have no real idea on
how to modularise it.
nixos-rebuild: Don't rely on $SHELL

Fixes #74.
stage-1: Clear environment before calling stage-2

In particular, stage-1's LD_LIBRARY_PATH should not infect stage-2.
Reported by viric.
Fix registering valid paths in VM tests

Commit 37b56574e20755e4c58370bb18a3d373d4ae7cfc revealed that the code
to get regInfo from /proc/cmdline was broken.  It only happened to
work because the kernel passes the command line to stage 1 through the
environment, so $regInfo was set anyway.
Revert 434260c772622408b1503a4ff2b65bfd900f3c80

There is a bug in unionfs, but it only manifested itself because of
our accidental use of stage-1 libraries in stage-2.
Set $HOME in stage-2

http://hydra.nixos.org/build/3900294
wpa_supplicant: Remove accidentally committed debug flag
Enable nix.readOnlyStore by default