Refs #22058 - refresh rubocop config and apply autofixes

Fixes #19855 - Disable Style/ConditionalAssignment cop

Fixes #23235 - Disable Style/IfUnlessModifier cop

Fixes #19770 - Disable Layout/DotPosition cop

Fixes #23157 - Enable Performance/FixedSize cop

Fixes #19848 - Set Style/Alias cop to prefer_alias_method

Refs #23011 - set TargetRubyVersion: to 2.3

Fixes #19763 - Disable Bundler/OrderedGems cop

Fixes #19776 - Configure Layout/FirstParameterIndentation cop

Fixes #19868 - Disable Style/InverseMethods cop

Fixes #19907 - Configure Style/TernaryParentheses cop

Fixes #19849 - Configure Style/AndOr cop

Fixes #21576 - Always use Rails 5.1, drop Rails 5.0

Fixes #19820, #19822, #19824 - Fix some performance cops

Fixes #21977 - Stop enforcing detect/select/etc methods

Fixes #21450 - Update rubocop to 0.51.0

Fixes #19912 - Allow all styles of word arrays

Fixes #19828 - Fix Rails/Blank cop

I disabled the default UnlessPresent value since sometimes it's clearer
to use `unless attribute.present?` instead of `if attribute.blank?`.

Fixes #19700 - update rubocop rules

The following changes have been made:

- Performance/RedundantMerge:
changes lines such as:
```not_found_message.merge! :message => options```
to:
```not_found_message[:message] = options```

- converts str.match() to str =~ ()...

fixes #18534 - configure rubocop for Ruby 2.0 compatibility

Fixes #18017 - Allow single/double quotes for HoundCI

Fixes #16564 - Disable FrozenStringLiteralComment cop

Also fixes a failng cop in config/initializers/secure_headers.rb

Refs #7233 - Fixing erroneous rubocop config

fixes #16166 - exclude node_modules/ directory from rubocop

Fixes #15364 - disable Style/ClassCheck cop

Refs #3809 - Using defaults for AndOr cop

Refs #3809 - Turning on the AndOr cop

fixes #14133 - update to rubocop 0.39.0

Replaces hirb-unicode with the maintained hirb-unicode-steakknife fork,
due to conflicting requirements on unicode-display_width with the older
hirb-unicode and new rubocop.

Rake is unpinned due to the newer rubocop's compatibility with it, and...

Fixes #12911 - Turning on 0.35.1 cops

Refs #3809 - Stabby lambda syntax for oneliners

I started by spotting log.rb which didn't have a lambda wrapping its
default scope, as needed by Rails 4. Since the style guide and most
Rails 4 documents used the stabby lambda, I turned on the cop so that we...

Refs #3809 - Remove nested ternary and nil checking

refs #3809 - exclude auto-generated schema.rb from rubocop checks

Fixes #7233 - Drop Ruby 1.8.7 and revert Ruby 1.8.7 specifics

Fixes #2089 - Add network configuration to ENC

Fixes #3809 - Add rubocop to check Ruby code