To keep the rules of using binary name of the package in the config file,
we grab the pkgname[0] of the bash array. This is done to stay compatible with
archweb.

As bash 4.2.x doesn't export array to env (well know bug). We add a custom
export as string the first field of pkgname array as pkgname0.

This follow a PEP (don't remember number) to improve compatibility accross
distro.

This command allow archversion to quickly update package to its last upstream
version.

Our error exceptions are now catched globablly and __str__ method describe
the issue

This will avoid to run make every time a fix is provided in archversion (dev only)

This is not the same behaviour of argparse than in 2.7 python. I guess
there is a bug.

Instead of having all tools into one arch tools repository, split into
sub autonomous project.