argparse.py: Add package selection to status command
config.py: Refactor load_configuration
logger.py: Fix broken newline on output

I was using record.msg instead of the stripped nmsg.
package.py: Fix aur status handling in new_package

* Fixed get_package_config(). Apparently hasattr and getattr can get the
  attribute from any level in the dict. I needed a top level key.
* Fixed missing () for repo.strip()
* Add test_packages_test_moved_aur_package()
Add test_comp_ver_good()
todo: Fix status command