Fix backup task
Fix backup task

- Adds host option to the postgres commands where necessary.
- Passes -h option to tar when compressing in order to follow symlinks.

Signed-off-by: Athos Ribeiro <46660b26d1dd07ddebb98b598a9bf37b408ad6a1@gmail.com>
Signed-off-by: Lucas Kanashiro <7ec126e3ea6dd3e9933df547d94f0128ace7b6d9@gmail.com>

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