Update development dependencies

Update bundler and other development dependencies

Upgrade webpacker development dependency

Update rubocop rules

Add Sprockets 4 manifest

Update rails, capybara, webdriver dependencies

Updates js error inspection to match more recent Selenium Webdriver API

Author: rossta

.rubocop.yml

@@ -11,11 +11,6 @@ AllCops:
 Style/AndOr:
   Enabled: true
 
-# Do not use braces for hash literals when they are the last argument of a
-# method call.
-Style/BracesAroundHashParameters:
-  Enabled: true
-
 # Align `when` with `case`.
 Layout/CaseIndentation:
   Enabled: true
@@ -93,19 +88,19 @@ Style/StringLiterals:
   EnforcedStyle: double_quotes
 
 # Detect hard tabs, no hard tabs.
-Layout/Tab:
+Layout/IndentationStyle:
   Enabled: true
 
 # Blank lines should not have any spaces.
-Layout/TrailingBlankLines:
+LineLayout/TrailingEmptyLines:
   Enabled: true
 
 # No trailing whitespace.
 Layout/TrailingWhitespace:
   Enabled: true
 
 # Use quotes for string literals when they are enough.
-Style/UnneededPercentQ:
+Style/RedundantPercentQ:
   Enabled: true
 
 # Align `end` with the matching keyword or starting expression except for

Gemfile

@@ -1,9 +1,7 @@
 source "https://rubygems.org"
 
 gem "rubocop", ">= 0.47", require: false
-gem "rails", "~> 5.2.0"
-gem "webpacker", "~> 4.0.0"
-gem "puma", "~> 4.0"
+gem "pry-byebug"
 
 # Specify your gem's dependencies in webpacker-react.gemspec
 gemspec