add rwd
mejora footer
Merge branch 'master' of https://github.com/jansanchez/html6

* 'master' of https://github.com/jansanchez/html6:
  add a new custom grunt task stylus_path
  add a new custom grunt task stylus_path
  add a new custom grunt task stylus_path
  categotria
  active
  sprites
  active breadcrumb
  categoria avance 1
  campana2