On Fri, Nov 29, 2013 at 1:01 PM, Tom <adatgyujto@gmail.com> wrote:
We are only interested in packages which are shipped with emacs,
so we should query only those. 

On the contrary, those packages which are widely adopted by users
despite not being shipped with Emacs are of the _greatest_ interest,
by virtue of the fact that large numbers of users have decided that
the functionality they provide is important enough to warrant making
the effort to install them from ELPA or Marmalade or Github or
wherever else.  The popularity of third-party libraries such as
dash.el ("a modern list library for Emacs")[0] and s.el ("the long
lost Emacs string manipulation library")[1] demonstrates that many
users find Emacs' support for such functionality inadequate and
points out an obvious opportunity for improvement by addressing
those weaknesses in Emacs proper.

[0] https://github.com/magnars/dash.el
[1] https://github.com/magnars/s.el

Josh