Update turbolinks-rails for passing railties test

Ref - https://github.com/turbolinks/turbolinks-rails/pull/3

Gemfile

@@ -12,7 +12,7 @@ gem 'mocha', '~> 0.14', require: false
 gem 'rack-cache', '~> 1.2'
 gem 'jquery-rails'
 gem 'coffee-rails', '~> 4.1.0'
-gem 'turbolinks', '~> 5.0.0.beta1'
+gem 'turbolinks', github: 'turbolinks/turbolinks-rails'
 
 # require: false so bcrypt is loaded only when has_secure_password is used.
 # This is to avoid Active Model (and by extension the entire framework)

Gemfile.lock

@@ -26,6 +26,13 @@ GIT
   specs:
     sass (3.4.21)
 
+GIT
+  remote: git://github.com/turbolinks/turbolinks-rails.git
+  revision: 1604dcd7bad911f1471d65e4f47cd19d844354f1
+  specs:
+    turbolinks (5.0.0.beta1)
+      turbolinks-source
+
 PATH
   remote: .
   specs:
@@ -245,8 +252,6 @@ GEM
     thor (0.19.1)
     thread (0.1.7)
     thread_safe (0.3.5)
-    turbolinks (5.0.0.beta1)
-      turbolinks-source
     turbolinks-source (5.0.0.beta1.1)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
@@ -315,7 +320,7 @@ DEPENDENCIES
   sqlite3 (~> 1.3.6)
   stackprof
   sucker_punch
-  turbolinks (~> 5.0.0.beta1)
+  turbolinks!
   tzinfo-data
   uglifier (>= 1.3.0)
   w3c_validators