the api_mount function could, for some bizzare reason, fail midway
through, leaving the user with a half mounted chroot. set the trap
before the function instead, but mask errors since we might see "foo
not mounted" errors.
* the Makefile uses m4 to build the common lib into the scripts
* it includes install, uninstall and clean targets
* the dist target creates a source tar from a tag
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>
