Update Ruby on Rails documentation (5.0.2, 4.2.8, 4.1.16)

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -506,7 +506,7 @@ credits = [
     'https://www.ruby-lang.org/en/about/license.txt'
   ], [
     'Ruby on Rails',
-    '2004-2016 David Heinemeier Hansson<br>Rails, Ruby on Rails, and the Rails logo are trademarks of David Heinemeier Hansson.',
+    '2004-2017 David Heinemeier Hansson<br>Rails, Ruby on Rails, and the Rails logo are trademarks of David Heinemeier Hansson.',
     'MIT',
     'https://raw.githubusercontent.com/rails/rails/master/activerecord/MIT-LICENSE'
   ], [

lib/docs/scrapers/rdoc/rails.rb

@@ -44,16 +44,16 @@ module Docs
       /\ARails\/Generators\/Testing/]
 
     options[:attribution] = <<-HTML
-      &copy; 2004&ndash;2016 David Heinemeier Hansson<br>
+      &copy; 2004&ndash;2017 David Heinemeier Hansson<br>
       Licensed under the MIT License.
     HTML
 
     version '5.0' do
-      self.release = '5.0.1'
+      self.release = '5.0.2'
     end
 
     version '4.2' do
-      self.release = '4.2.7'
+      self.release = '4.2.8'
     end
 
     version '4.1' do