buildsystem: add forgotten ccache option
add boost (needs testing)
fix bad target name
add libreadline
target-rootfs fix arch in opkg.conf
menuconfig cosmetic
Config.in fix dependency for GCC_FROM_CROSS
target-image rename makefile target to fix warning
minor rename base_do_prepare
dep-graph fix bug: loop causes dependency lost

+ some cosmetics
base.mk fix ipk-origin names
target-rootfs don't RM_WORK
target-rootfs update depends
target-rootfs cleanup
target-rootfs small fixes for print deps
Change lirc to use without evremote2, thx Taapat sklnet & graugans

technic: don't forget to increase PR !
Small fix in README.md
Add image info in /etc/issue at 2boom request, thx Taapat
linux-kernel: use /proc/cmdline in postinst to check multiboot, thx vvv2
Chande skin MetropolisHD package arch from sh4 to all