Fix #177

- Fix #177 
- Add 3 lastest Jobs to home.
- The HTML Markup is the same as `Ultimas noticias` *(UI can be tweaked via CSS later)*.


![temp3](https://cloud.githubusercontent.com/assets/1189414/5328726/29062fce-7d6a-11e4-9b0b-9123bbe37e3e.jpg)


:dragon: 
Buenisimo @juancarlospaco !!

Una sola cosita aca deberias poner `job.get_abolsute_url` en vez de `article.get_absolute_url`.