Create pokemon script

@thiagogabriel please take a look, I tested this script with the hubot from github, I got some errors when trying run our fork.
Check others scripts. Usually you just don't output anything instead of telling the user what went wrong. I would guess the reason for this is that showing the error doesn't necessarily help with anything in this case.

Pedro Nascimento

> On Jun 23, 2014, at 09:12, Mauro George <notifications@github.com> wrote:
> 
> In scripts/pokemon.coffee:
> 
> > +#   A way to interact with Pokémons.
> > +#
> > +# Commands:
> > +#   hubot pokedex <national_id> - Get info of a pokemon by his national_id
> > +#   hubot pokemon <national_id> - Get info of a pokemon by his national_id
> > +#
> > +# Author:
> > +#   maurogeorge
> > +module.exports = (robot) ->
> > +
> > +  robot.respond /(poke(dex|mon)) (.*)/i, (msg) ->
> > +    national_id = msg.match[3]
> > +
> > +    msg.http("#{SERVICE_HOST}/api/v1/pokemon/#{national_id}/").get() (err, res, body) =>
> > +
> > +      unless body
> @lunks in this case a exception is raised. What is the behavior in the hipchat?
> 
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