So we can support multiple kernels in parallel.

Use the built repositories as source for the iso components rather than
just pick whats in a given dir.

alpine-baselayout does it.

and dont build index if its not needed

-P lets user specify the REPODEST on cmd line

This allows ABUILDS to call the default_doc func and append stuff missing

- check that md5sums correspond to source
- warn if maintainer is missing

so far only option avaiable is !strip, which disables stripping of binaries.

The -r option will only install deps from system repo and fail if any is
missing.

The -R option will parse the aports tree and try build the missing packages
and then install the newly built package.

set default repositories

abuild [-c] -n PKGNAME[-PKGVER]
creates a directory with new APKBUILD. If -c is specified will sample init.d,
conf.d and install script be copied as well.

Read the version from .alpine-release on media. Also display the init
script version.

also create the symlink for kernel modules

This reverts commit fe7da984.

Conflicts:

	abuild

by sourcing the functions.sh after abuild.conf

I'm not sure if we really want this