The new package luci-base-libs provides the modules that not strictly relate
to the web-interface of luci. By separating these libs they can be used by
other packages without having to install the web-components.
This change was inspired by providing a shell-only interface for 4MB-flash
devices, by keeping as much code common with a full install.
Signed-off-by: Sven Roederer <freifunk@it-solutions.geroedel.de>