hwpack: add omap4-panda-es-b3

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
hwpack: add omap4-panda-es-b3 and more docs

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
other: zz-uenv_txt: this is actually called as root, drop sudo

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
setup_sdcard.sh: bbb-uEnv.txt add readme inside

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
setup_sdcard.sh: add nfs-uEnv.txt helper

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
setup_sdcard.sh: more nfs hints

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
distro: quantal and raring are gone from ports.ubuntu.com

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>