Update CoffeeScript documentation (1.12.3)

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -171,7 +171,7 @@ credits = [
     'https://raw.githubusercontent.com/bcit-ci/CodeIgniter/develop/license.txt'
   ], [
     'CoffeeScript',
-    '2009-2015 Jeremy Ashkenas',
+    '2009-2017 Jeremy Ashkenas',
     'MIT',
     'https://raw.githubusercontent.com/jashkenas/coffee-script/master/LICENSE'
   ], [

lib/docs/scrapers/coffeescript.rb

@@ -2,7 +2,7 @@ module Docs
   class Coffeescript < UrlScraper
     self.name = 'CoffeeScript'
     self.type = 'coffeescript'
-    self.release = '1.12.2'
+    self.release = '1.12.3'
     self.base_url = 'http://coffeescript.org'
     self.links = {
       home: 'http://coffeescript.org',
@@ -16,7 +16,7 @@ module Docs
     options[:skip_links] = true
 
     options[:attribution] = <<-HTML
-      &copy; 2009&ndash;2015 Jeremy Ashkenas<br>
+      &copy; 2009&ndash;2017 Jeremy Ashkenas<br>
       Licensed under the MIT License.
     HTML
   end