Conform to latest Rubocop additions and updates

This disables the new `Layout/MultilineMethodCallBraceLayout` cop, but
it conforms to the new cops / changes to existing cops.

.rubocop.yml

@@ -18,6 +18,9 @@ Layout/FirstHashElementIndentation:
 Layout/MultilineMethodCallBraceLayout:
   EnforcedStyle: new_line
 
+Layout/MultilineMethodCallBraceLayout:
+  Enabled: false
+
 Layout/MultilineMethodCallIndentation:
   EnforcedStyle: indented
   rubocop: warning

lib/scrapbook/engine.rb

@@ -11,9 +11,7 @@ class Engine < ::Rails::Engine
 
     initializer 'scrapbook.assets' do |app|
       if app.config.scrapbook.precompile_assets && app.config.respond_to?(:assets)
-        app.config.assets.precompile.concat %w[
-          scrapbook/application.css
-        ]
+        app.config.assets.precompile.push('scrapbook/application.css')
       end
     end
   end

spec/lib/scrapbook/routing_spec.rb

@@ -10,7 +10,7 @@
     let(:books) { {} }
 
     before do
-      allow(::Scrapbook::Engine.config.scrapbook).to receive(:paths)
+      allow(Scrapbook::Engine.config.scrapbook).to receive(:paths)
         .and_return(books)
       allow(object).to receive(:mount)
     end
@@ -25,7 +25,7 @@
       object.scrapbook('book')
 
       expect(object).to have_received(:mount).with(hash_including(
-        ::Scrapbook::Engine => '/book',
+        Scrapbook::Engine => '/book',
         defaults: {'.book': 'book'},
         as: 'book_scrapbook'
       ))
@@ -37,7 +37,7 @@
         object.scrapbook('book', at: path)
 
         expect(object).to have_received(:mount).with(hash_including(
-          ::Scrapbook::Engine => path,
+          Scrapbook::Engine => path,
           defaults: {'.book': 'book'},
           as: 'book_scrapbook'
         ))

spec/models/scrapbook/scrapbook_spec.rb

@@ -19,7 +19,7 @@
       let(:pathname) { nested_pathname.join('pages/far/and/wide.html.haml') }
 
       before do
-        allow(::Scrapbook::Engine.config.scrapbook).to receive(:paths)
+        allow(Scrapbook::Engine.config.scrapbook).to receive(:paths)
           .and_return({'book1' => base_pathname, 'nested' => nested_pathname})
       end
 

test/boxcar/config/environments/production.rb

@@ -60,7 +60,7 @@
   config.active_support.report_deprecations = false
 
   # Use default logging formatter so that PID and timestamp are not suppressed.
-  config.log_formatter = ::Logger::Formatter.new
+  config.log_formatter = Logger::Formatter.new
 
   # Use a different logger for distributed setups.
   # require "syslog/logger"