[arch-dev-public] Various initscripts patches

The following patches are some hacks at the initscripts I did recently, mostly provoked because our latest initscripts prevent my slice from even booting. Not cool. The most important one, by far, is the backgrounding of the udevadm trigger call. This one sets up a race condition and completely blows up the boot process when the /dev/sda2 node doesn't even exist yet. The rest of the patches are various other things, hopefully explained well within the patch header themselves. Let me know if there are concerns or questions on this stuff. -Dan