adding newer_than and older_then named scopes
adding newer_than and older_then named scopes

evandrojr/noosfero,larissa/noosfero,blogoosfero/noosfero,EcoAlternative/noosfero-ecosol,vfcosta/noosfero,hebertdougl/noosfero,hebertdougl/noosfero,evandrojr/noosferogov,coletivoEITA/noosfero-ecosol,marcosronaldo/noosfero,coletivoEITA/noosfero-ecosol,arthurmde/noosfero,EcoAlternative/noosfero-ecosol,vfcosta/noosfero,blogoosfero/noosfero,macartur/noosfero,hebertdougl/noosfero,larissa/noosfero,larissa/noosfero,marcosronaldo/noosfero,coletivoEITA/noosfero-ecosol,samasti/noosfero,CIRANDAS/noosfero-ecosol,arthurmde/noosfero,blogoosfero/noosfero,EcoAlternative/noosfero-ecosol,CIRANDAS/noosfero-ecosol,tallysmartins/noosfero,larissa/noosfero,EcoAlternative/noosfero-ecosol,tallysmartins/noosfero,AlessandroCaetano/noosfero,LuisBelo/tccnoosfero,hebertdougl/noosfero,evandrojr/noosfero,coletivoEITA/noosfero-ecosol,CIRANDAS/noosfero-ecosol,LuisBelo/tccnoosfero,EcoAlternative/noosfero-ecosol,tallysmartins/noosfero,macartur/noosfero,marcosronaldo/noosfero,tallysmartins/noosfero,evandrojr/noosfero,arthurmde/noosfero,AlessandroCaetano/noosfero,arthurmde/noosfero,coletivoEITA/noosfero-ecosol,LuisBelo/tccnoosfero,evandrojr/noosferogov,marcosronaldo/noosfero,blogoosfero/noosfero,AlessandroCaetano/noosfero,AlessandroCaetano/noosfero,samasti/noosfero,macartur/noosfero,alexandreab/noosfero,arthurmde/noosfero,AlessandroCaetano/noosfero,evandrojr/noosferogov,blogoosfero/noosfero,marcosronaldo/noosfero,AlessandroCaetano/noosfero,samasti/noosfero,alexandreab/noosfero,marcosronaldo/noosfero,evandrojr/noosfero,blogoosfero/noosfero,LuisBelo/tccnoosfero,alexandreab/noosfero,larissa/noosfero,hebertdougl/noosfero,alexandreab/noosfero,macartur/noosfero,vfcosta/noosfero,blogoosfero/noosfero,LuisBelo/tccnoosfero,CIRANDAS/noosfero-ecosol,LuisBelo/tccnoosfero,evandrojr/noosfero,hebertdougl/noosfero,alexandreab/noosfero,arthurmde/noosfero,macartur/noosfero,larissa/noosfero,larissa/noosfero,macartur/noosfero,samasti/noosfero,samasti/noosfero,arthurmde/noosfero,alexandreab/noosfero,vfcosta/noosfero,evandrojr/noosferogov,marcosronaldo/noosfero,tallysmartins/noosfero,evandrojr/noosferogov,vfcosta/noosfero,hebertdougl/noosfero,tallysmartins/noosfero,tallysmartins/noosfero,AlessandroCaetano/noosfero,evandrojr/noosfero,CIRANDAS/noosfero-ecosol,EcoAlternative/noosfero-ecosol,evandrojr/noosferogov,alexandreab/noosfero,coletivoEITA/noosfero-ecosol,vfcosta/noosfero,samasti/noosfero,macartur/noosfero,evandrojr/noosfero,evandrojr/noosferogov,EcoAlternative/noosfero-ecosol