Revert "Revert "Merge branch 'ai2657' of git://github.com/caioformiga/noosfero-ecosol into cirandas""

This reverts commit 2bb18ccf860c8daab5e2af40be858e95378210e0.
Fixing role_assignment_sweeper due to distribution plugin hotspot
Merge pull request #16 from caioformiga/ai2657

Fixing role_assignment_sweeper due to distribution plugin hotspot