added strace package
added spl and zfs packages
modified zlib to install libs into initramfs
modified glibc to install libm.so into initramfs
modified busybox package to install mount and umount symlinks into initramfs
modified util-linux package to install libs into initramfs
modified linux package to create etc/modules-linux instead etc/modules
modified initramfs package to merge etc/modules-* files into one etc/modules