im confused at rails

Gemfile.lock

@@ -0,0 +1,124 @@
+PATH
+  remote: .
+  specs:
+    crowdstart-rails (0.1.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionmailer (4.2.3)
+      actionpack (= 4.2.3)
+      actionview (= 4.2.3)
+      activejob (= 4.2.3)
+      mail (~> 2.5, >= 2.5.4)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+    actionpack (4.2.3)
+      actionview (= 4.2.3)
+      activesupport (= 4.2.3)
+      rack (~> 1.6)
+      rack-test (~> 0.6.2)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (4.2.3)
+      activesupport (= 4.2.3)
+      builder (~> 3.1)
+      erubis (~> 2.7.0)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    activejob (4.2.3)
+      activesupport (= 4.2.3)
+      globalid (>= 0.3.0)
+    activemodel (4.2.3)
+      activesupport (= 4.2.3)
+      builder (~> 3.1)
+    activerecord (4.2.3)
+      activemodel (= 4.2.3)
+      activesupport (= 4.2.3)
+      arel (~> 6.0)
+    activesupport (4.2.3)
+      i18n (~> 0.7)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    arel (6.0.2)
+    builder (3.2.2)
+    diff-lcs (1.2.5)
+    erubis (2.7.0)
+    globalid (0.3.5)
+      activesupport (>= 4.1.0)
+    i18n (0.7.0)
+    json (1.8.3)
+    loofah (2.0.2)
+      nokogiri (>= 1.5.9)
+    mail (2.6.3)
+      mime-types (>= 1.16, < 3)
+    mime-types (2.6.1)
+    mini_portile (0.6.2)
+    minitest (5.7.0)
+    nokogiri (1.6.6.2)
+      mini_portile (~> 0.6.0)
+    rack (1.6.4)
+    rack-test (0.6.3)
+      rack (>= 1.0)
+    rails (4.2.3)
+      actionmailer (= 4.2.3)
+      actionpack (= 4.2.3)
+      actionview (= 4.2.3)
+      activejob (= 4.2.3)
+      activemodel (= 4.2.3)
+      activerecord (= 4.2.3)
+      activesupport (= 4.2.3)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 4.2.3)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.6)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6.0)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.2)
+      loofah (~> 2.0)
+    railties (4.2.3)
+      actionpack (= 4.2.3)
+      activesupport (= 4.2.3)
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+    rake (10.4.2)
+    rspec (3.3.0)
+      rspec-core (~> 3.3.0)
+      rspec-expectations (~> 3.3.0)
+      rspec-mocks (~> 3.3.0)
+    rspec-core (3.3.2)
+      rspec-support (~> 3.3.0)
+    rspec-expectations (3.3.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.3.0)
+    rspec-mocks (3.3.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.3.0)
+    rspec-support (3.3.0)
+    sprockets (3.2.0)
+      rack (~> 1.0)
+    sprockets-rails (2.3.2)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      sprockets (>= 2.8, < 4.0)
+    thor (0.19.1)
+    thread_safe (0.3.5)
+    tzinfo (1.2.2)
+      thread_safe (~> 0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.10)
+  crowdstart-rails!
+  rails
+  rake (~> 10.0)
+  rspec
+
+BUNDLED WITH
+   1.10.5

lib/crowdstart/rails.rb

@@ -2,4 +2,6 @@ require "crowdstart/rails/version"
 require "crowdstart/rails/engine"
 
 module Crowdstart
+  module Rails
+  end
 end

lib/crowdstart/rails/engine.rb

@@ -1,6 +1,6 @@
 module Crowdstart
   module Rails
-    class Engine < Rails::Engine
+    class Engine < ::Rails::Engine
     end
   end
 end

spec/crowdstart/ruby_spec.rb

@@ -1,11 +0,0 @@
-require 'spec_helper'
-
-describe Crowdstart::Rails do
-  it 'has a version number' do
-    expect(Crowdstart::Rails::VERSION).not_to be nil
-  end
-
-  it 'does something useful' do
-    expect(false).to eq(true)
-  end
-end

spec/spec_helper.rb

@@ -1,2 +0,0 @@
-$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
-require 'crowdstart/rails'