diff --git a/bin/rails b/bin/rails
index 5191e69..4d608ed 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,4 +1,8 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
 APP_PATH = File.expand_path('../../config/application', __FILE__)
 require_relative '../config/boot'
 require 'rails/commands'
diff --git a/bin/rake b/bin/rake
index 1724048..8017a02 100755
--- a/bin/rake
+++ b/bin/rake
@@ -1,4 +1,8 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
 require_relative '../config/boot'
 require 'rake'
 Rake.application.run
diff --git a/bin/spring b/bin/spring
index 253ec37..7f24d96 100755
--- a/bin/spring
+++ b/bin/spring
@@ -7,7 +7,7 @@ unless defined?(Spring)
   require "rubygems"
   require "bundler"
 
-  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    spring \((.*?)\)$.*?^$/m)
+  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    (?:  )*spring \((.*?)\)$.*?^$/m)
     ENV["GEM_PATH"] = ([Bundler.bundle_path.to_s] + Gem.path).join(File::PATH_SEPARATOR)
     ENV["GEM_HOME"] = ""
     Gem.paths = ENV
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 05bed26..969d48e 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -20,8 +20,9 @@ Rails.application.configure do
   # NGINX, varnish or squid.
   # config.action_dispatch.rack_cache = true
 
-  # Disable Rails's static asset server (Apache or NGINX will already do this).
-  config.serve_static_assets = false
+  # Disable serving static files from the `/public` folder by default since
+  # Apache or NGINX already handles this.
+  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JavaScripts and CSS.
   config.assets.js_compressor = :uglifier
@@ -72,9 +73,6 @@ Rails.application.configure do
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
-  # Disable automatic flushing of the log to improve performance.
-  # config.autoflush_log = false
-
   # Use default logging formatter so that PID and timestamp are not suppressed.
   config.log_formatter = ::Logger::Formatter.new
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 19f714f..5c6dadf 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -12,8 +12,8 @@ Rails.application.configure do
   # preloads Rails for running tests, you may have to set it to true.
   config.eager_load = false
 
-  # Configure static asset server for tests with Cache-Control for performance.
-  config.serve_static_assets  = true
+  # Configure static file server for tests with Cache-Control for performance.
+  config.serve_static_files   = true
   config.static_cache_control = 'public, max-age=3600'
 
   # Show full error reports and disable caching.
@@ -32,7 +32,7 @@ Rails.application.configure do
   config.action_mailer.delivery_method = :test
   config.action_mailer.default_url_options = {host: 'localhost:3000'}
 
-  # Randomize the order test cases are executed
+  # Randomize the order test cases are executed.
   config.active_support.test_order = :random
 
   # Print deprecation notices to the stderr.