gitignore: Add the '/repo' directory.
archtrack: Remove more maintainer comments.
archtrack: Cleanup PKGBUILD files.

This applies the results of one round with the 'prep-packages' script.
prep-packages: Fix a couple of bugs.

This fixes a missing argument on the maintainer removal line and makes
the package function checker look for 'package.*()' functions.
archtrack: Fix some package licenses.

This enforces standard licenses.
archtrack: Fix more licenses.

This fixes the GPL licenses.
archtrack: Cleanup some PKGBUILDs.

This removes extra comments and fixes indentation.
prep-packages: Add license checking.

This makes 'prep-packages' check the contents of the license variable
against the files in '/usr/share/licenses/common'.