Fix: comments list when there is spam on thread

(ActionItem2918)
Merge branch 'AI2918' of /mnt/ebs/repositories/danielafeitosa/noosfero into stable
Bumping version 0.45.2
Fix xss issue at body_classes
Fix jquery xss issue
Destroy roles when environment is destroyed

(ActionItem2987)
Merge branch 'stable' of https://gitlab.com/noosfero/noosfero into travis