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.

pacman database queries are now handled by a singleton class into pacman module.
This will avoid a huge memory consumption to the current implementation.

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

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

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