Bugfix: Correct the fl_directory_do() top-level path execution order.

Bugfix: Correct the fl_directory_do() top-level path execution order.

The before must happen before the directory recurse.
The action must happen after the directory recurse.
The after must happen after the action.

This is already done in the recursive paths and it is now done in the top level path.

Update the documentation comments to more accurately and better explain this.

Apply the directory path resetting following recurse at the top level as well.