Add Muen-specific Linux kernel config
Add Muen post-build script
Add custom etc/inittab

Copied by post-build script to target directory.
Add Muen project configuration

Use 'make muen_defconfig' to load it.
Enable kbd package

This allows to load keyboard translation tables, e.g.:

loadkeys /usr/share/keymaps/i386/qwertz/sg.map.gz