themes: don't allow selection of nosidebars layout template
themes: don't allow selection of nosidebars layout template

samasti/noosfero,samasti/noosfero,CIRANDAS/noosfero-ecosol,samasti/noosfero,coletivoEITA/noosfero-ecosol,samasti/noosfero,coletivoEITA/noosfero-ecosol,CIRANDAS/noosfero-ecosol,coletivoEITA/noosfero-ecosol,samasti/noosfero,coletivoEITA/noosfero-ecosol,CIRANDAS/noosfero-ecosol,coletivoEITA/noosfero-ecosol,samasti/noosfero,CIRANDAS/noosfero-ecosol,coletivoEITA/noosfero-ecosol,CIRANDAS/noosfero-ecosol