More Rails 4.0 upgrade changes

1. Compared existing branch with empty Rails 4.0 project and
    made changes as needed.
 2. Fix find/first warning.
 3. Fix sqlite timeout issue.
    -- config/database.yml
    -- spec/vulnerabilities/insecure_dor_spec.rb

app/assets/javascripts/application.js

@@ -12,6 +12,7 @@
 //
 //= require jquery
 //= require jquery_ujs
+//= require turbolinks
 //= require wysiwyg/wysihtml5-0.3.0.js
 //= require jquery.min.js
 //= require jquery.scrollUp.js
@@ -31,6 +32,7 @@
 //= require jsapi
 //= html5.js
 
+
 function rubyCodeFormat() {