Fixes #19789 - fix Layout/SpaceAroundOperators cop
Fixes #19877 - Fix Style/NegatedIf cop
Refs #3809 - Turning on some rubocop cops
Fixes #10584 - Replace sort.uniq with uniq.sort
Refs #3809 - Remove useless assignments
Bump version to 1.2-develop
update docs for 0.1-5 release