Fix missing default values after update to gov uk template 0.14.0

Add missing default values:

- Crown copyright message
- Licence message
- Skiplink message
- Logo link title

Order alphabetically.

govuk/config.js

@@ -5,13 +5,17 @@ module.exports = {
   bodyEnd: "{{$bodyEnd}}{{/bodyEnd}}",
   content: "{{$content}}{{/content}}",
   cookieMessage: "{{$cookieMessage}}{{/cookieMessage}}",
+  crownCopyrightMessage: "{{$crownCopyrightMessage}}© Crown copyright{{/crownCopyrightMessage}}",
   footerSupportLinks: "{{$footerSupportLinks}}{{/footerSupportLinks}}",
   footerTop: "{{$footerTop}}{{/footerTop}}",
+  globalHeaderText: "{{$globalHeaderText}}GOV.UK{{/globalHeaderText}}",
   head: "{{$head}}{{/head}}",
   headerClass: "{{$headerClass}}{{/headerClass}}",
-  insideHeader: "{{$insideHeader}}{{/insideHeader}}",
   homepageUrl: "{{$homepageUrl}}https://www.gov.uk{{/homepageUrl}}",
-  globalHeaderText: "{{$globalHeaderText}}GOV.UK{{/globalHeaderText}}",
+  insideHeader: "{{$insideHeader}}{{/insideHeader}}",
+  licenceMessage: "{{$licenceMessage}}<p>All content is available under the <a href='https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/' rel='license'>Open Government Licence v3.0</a>, except where otherwise stated</p>{{/licenceMessage}}",
+  logoLinkTitle: "{{$logoLinkTitle}}Go to the GOV.UK homepage{{/logoLinkTitle}}",
   pageTitle: "{{$pageTitle}}GOV.UK - The best place to find government services and information{{/pageTitle}}",
-  propositionHeader: "{{$propositionHeader}}{{/propositionHeader}}"
+  propositionHeader: "{{$propositionHeader}}{{/propositionHeader}}",
+  skipLinkMessage: "{{$skipLinkMessage}}Skip to main content{{/skipLinkMessage}}"
 };

govuk/views/govuk_template.html

@@ -63,7 +63,7 @@
 
     <div id="skiplink-container">
       <div>
-        <a href="#content" class="skiplink"></a>
+        <a href="#content" class="skiplink">{{$skipLinkMessage}}Skip to main content{{/skipLinkMessage}}</a>
       </div>
     </div>
 
@@ -79,7 +79,7 @@
       <div class="header-wrapper">
         <div class="header-global">
           <div class="header-logo">
-            <a href="{{$homepageUrl}}https://www.gov.uk{{/homepageUrl}}" title="" id="logo" class="content">
+            <a href="{{$homepageUrl}}https://www.gov.uk{{/homepageUrl}}" title="{{$logoLinkTitle}}Go to the GOV.UK homepage{{/logoLinkTitle}}" id="logo" class="content">
               <img src="{{assetPath}}images/gov.uk_logotype_crown.png?0.14.0" width="35" height="31" alt=""> {{$globalHeaderText}}GOV.UK{{/globalHeaderText}}
             </a>
           </div>
@@ -110,13 +110,13 @@
             <div class="open-government-licence">
               <p class="logo"><a href="https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/" rel="license">Open Government Licence</a></p>
 
-
+                {{$licenceMessage}}<p>All content is available under the <a href='https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/' rel='license'>Open Government Licence v3.0</a>, except where otherwise stated</p>{{/licenceMessage}}
 
             </div>
           </div>
 
           <div class="copyright">
-            <a href="http://www.nationalarchives.gov.uk/information-management/re-using-public-sector-information/copyright-and-re-use/crown-copyright/"></a>
+            <a href="http://www.nationalarchives.gov.uk/information-management/re-using-public-sector-information/copyright-and-re-use/crown-copyright/">{{$crownCopyrightMessage}}© Crown copyright{{/crownCopyrightMessage}}</a>
           </div>
         </div>
       </div>