Fixes #21120 - orchestration tasks are added only once (#5079)

Fixes #19534 - improved orchestration task logging

fixes #18445 - always define eager_load_paths, use require_dep

Allows `eager_load!` to be called or enabled in any environment without
loading files under lib/ twice. Switches many `require` calls to Rails'
`require_dependency` to always use its dependency loader, so when eager...

Fixes #17042 - add logging of task statuses after orchestration

fixes #15635 - tests for dns orchestration

Fixes #13557 - Rubocop enforce specifying a timezone

Rubocop can enforce what timezone to store in the database ,
so we can ensure everything is stored using UTC and we don't
miss these things in code reviews. When objects are displayed,
they must use the time provided by set_timezone in the...

refs #12147 - task#as_json should return hash

ActiveSupport 4 does not add the as_json method on all objects, thus,
this doesn't work on rails 4, for compatibility we use same syntax in
rails 3.

Refs #3809 - Enable Rails delegate cop

Refs #3809 - Remove cops for empty lines

Refs #3809 - Use parentheses in method definitions