copy autofs recipe from meta-magpie

autofs4 is "good enough" and has less dependencies than autofs5
autofs: fix init script, fix mount path, improve package
busybox-telnetd: don't stop in postrm

this is a workaround to be able to update busybox while
being logged in via telnet
copy fuse from openembedded/meta-filesystems
copy libupnp from meta-magpie
copy djmount from meta-magpie
busybox: enable hdparm, more telnetd hacks
neutrino: add custom-poweroff script for coolstream
neutrino-image: add e2fsprogs, djmount, autofs
neutrino: fix custom-poweroff

/tmp might be unmounted when custom-poweroff runs, so use /dev/shm
(which is in devtmpfs) instead for passing the timer parameters
udev-extraconf: improve storage hot/coldplug handling

* mount /media as (small) tmpfs, so that mountpoints and links
  do get cleaned up automatically on reboot
* coldplug blockdevices at boot, apparently udevadm trigger is
  not enough on some hardware / kernels to get USB mounted on boot
curl: fix sizeof off_t, curl uses _FILE_OFFSET_BITS=64

see http://article.gmane.org/gmane.linux.embedded.poky/9354
neutrino: configure with --enable-mdev