render prettier errors when trying to add a member without roles/principals
Changelog
Adds missing error handling spec
Adds notes spec
Adds journal note on planning element update
Adds routing spec
Adds work package priorities route
Adds view spec
Adds view
Adds controller spec
Implements work package priorities controller
Adds changelog entry
Merge branch 'dev' into feature/prettier_members_errors
fixes specs
Merge remote-tracking branch 'origin/dev' into feature/api_expose_work_package_priorities_3347
Merge pull request #857 from opf/feature/api_expose_work_package_priorities_3347

[FEATURE] API expose work package priorities 3347
Merge pull request #855 from opf/fix/api_planning_elements_update_do_not_accept_journal_notes_3774

[FIX] API planning elements update do not accept journal notes 3774
Update CHANGELOG.md

Updated changelog after PR merge
Merge remote-tracking branch 'origin/dev' into feature/prettier_members_errors
fix all the jshint errors.