Add rspec spring command

Gemfile

@@ -39,6 +39,7 @@ gem 'sdoc', '~> 0.4.0',          group: :doc
 
 group :development do
   gem 'spring'
+  gem 'spring-commands-rspec'
   gem 'quiet_assets'
   gem 'awesome_print'
 end

Gemfile.lock

@@ -205,6 +205,8 @@ GEM
       slim (~> 3.0)
     slop (3.6.0)
     spring (1.3.4)
+    spring-commands-rspec (1.0.4)
+      spring (>= 0.9.1)
     sprockets (3.0.2)
       rack (~> 1.0)
     sprockets-rails (2.2.4)
@@ -260,6 +262,7 @@ DEPENDENCIES
   simplecov
   slim-rails
   spring
+  spring-commands-rspec
   sqlite3
   turbolinks
   uglifier

bin/rspec

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
+require 'bundler/setup'
+load Gem.bin_path('rspec-core', 'rspec')

bin/spring

@@ -1,17 +1,14 @@
 #!/usr/bin/env ruby
 
-# This file loads spring without using Bundler, in order to be fast
-# It gets overwritten when you run the `spring binstub` command
+# This file loads spring without using Bundler, in order to be fast.
+# It gets overwritten when you run the `spring binstub` command.
 
 unless defined?(Spring)
   require "rubygems"
   require "bundler"
 
-  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
-
+  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    (?:  )*spring \((.*?)\)$.*?^$/m)
+    Gem.paths = { "GEM_PATH" => [Bundler.bundle_path.to_s, *Gem.path].uniq }
     gem "spring", match[1]
     require "spring/binstub"
   end