fix bug 1055107 - Add syntax highlighting to the document preview interface
Fix bug 1047448: Add "Sign in" page instructions
Merge pull request #2674 from darkwing/preview-syntax

 fix bug 1055107 - Add syntax highlighting to the document preview interface
Fix bug 1053849: Upgrade Django to 1.4.14.
Merge pull request #2692 from ubernostrum/update-django-1414

Fix bug 1053849: Upgrade Django to 1.4.14.
Merge pull request #2690 from openjck/1047448-sign-in-copy

Fix bug 1047448: Add "Sign in" page instructions
fix bug 1056472, 1056639 - Don't encode angle brackets in code samples
Merge pull request #2695 from darkwing/1056472-1056639

fix bug 1056472, 1056639 - Don't encode angle brackets in code samples
Fix bug 1056487 - broken links on MDN 'Learn Javascript' page

As for bug 1038541, the pages have been moved to webplatform.

Now also using proper naming for the Web Platform site on the
'Learn HTML' page.
Merge pull request #2696 from vrubiolo/bug-1056487-rework

Fix bug 1056487 - broken links on MDN 'Learn Javascript' page