Migrated to 2.8 #2347

Task ID: project-989/task-2347
Review ID: 395001
Merge branch 'release/2.6.1.0' into develop
Merge branch 'feature/task-2347'
Use release version of nereid in tests
Fix trove classifier
Bump version to 2.8.1.0
Merge branch 'release/2.8.1.0'