Multiple fixes and features

These are a couple of fixes I have been thinking about to add.

My idea is to move functions currently provided by the makefile to dabuild-admin. This helper script should facility all that is needed to manage dabuild on your system. Currently it only has some basic options like access .abuild configuration directory and listing the currently created dabuild named volumes. It would be nice to merge make_images.sh in the admin script and let users and CI use it to generate new images. ie dabuild-admin image create/upload/manifest. It would also be nice to add a make install target so we can install dabuild, dabuild-admin, dabuild.conf in the correct locations. This will also make it easier to package it. And we should probably start to tag versions so its easier to users to understand code changes (ie minor or breakage).