Borrowing slightly from git.git, derive a VERSION-FILE
from the current state of user's git working directory.
The VERSION is derived relative to the latest git annotated
tag object (using git-describe) and includable either in
shell scripts or in Makefiles.
The basic 'make dist' target generates a .tar.gz and a .zip
file named by the detected version.
Also include a basic clean target and dummy test target.
Signed-off-by: Emil Sit <sit@emilsit.net>
