Move several packages from 'new-packages/stage2' to 'packages'.
Add 'prep-packages' script.

This script prepares packages for the Archtrack project.

It does the following.
- makes an info file
- expands tabs
- removes vim modelines
- squeezes extra blank lines
- adds the maintainer comment
- removes '|| return' statements
- checks for a package function
- removes trailing whitespace