[development] standard dotinfo file "package" classification

[Earl Miles]

Vernon Mauery wrote:
> Why not ask module owners to make the default be the category that they list 
> it under at drupal.org.  Then those generic categories could be the guideline 
> for what to put in the 'package =' line.

Because the categories used for finding modules are likely not the same as the 
categories used to administer modules. This is especially true for modules 
listed under multiple categories.