Add a test for the process_aliases method.
Refactor all the process_ methods.

Their code was almost the same, excepting for one parameter.

Now we just generate all of them, which eliminates most of the code from
the component.
Fix the mkinitrd method.

The regular expression was wrong and it wasn't identifying any
System.map files at all.

And add tests.
Add tests for the Configure method.
Fix clashing use of the $i variable in tests.
Update the documentation of all tests.

Make it consistent with the methods being tested.
Test that all the process_* methods are generated.
Merge pull request #22 from piojo/test-modprobe

Refactor and add tests for the component.