[translations] autolocale automatic installation

[Jakub Suchy]

> Indeed. I tried to get in a patch to Drupal 5 to support our 
> implementation of these kind of features, but it was too late in the 
> cycle, so it was rejected. We either need to duplicate the functionality 
> from the module and theme admin pages, or we need to stick in two submit 
> callbacks to the forms, one that runs early, and one that runs last, so 
> we can see, what was changed in the database about modules 
> (enabled/disabled/installed) and themes (enabled/disabled). That way, we 
> can stick our process into the enable/disable flow.
> 
> As far as I see know, adding a pre-submit and a post-submit callback is 
> the better way to go, as it involves less core code duplication (but 
> more database magic).

Or submit a patch to module.inc something like hook_postinstall() using
module_invoke_all?