Run all subpackage functions and prepare the dirs first and create the
package itself later on. This will make it possible to automatically trace
the dependencies.

Also, speed up the detection of which makedeps are installed and which needs
to be built/installed. this requires apk-tools_pre11.

where <pkg> is package/subpackage name

fixes #22

prefix a makedepends with ! and its treated as a conflict. for example:

makedepends="zlib-dev !gettext"

check if wget is in makedepends.

fixes #11

install scripts are splitted into separate scripts. The install variable
should contain a list of the scripts. Each script should be the pkgname with
action as suffix. I.E:

install="$pkgname.pre-install $pkgname.post-install"

like when main package depends on subpackages

-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.

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.

This reverts commit fe7da984.

Conflicts:

	abuild

by sourcing the functions.sh after abuild.conf

This will let user specify a directory where the repositories are.
Setting REPODEST will override PKGDEST.