Merge pull request #210 from GafferHQ/create-pull-request/patch

Update Gaffer to 1.5.13.0

Author: murraystevenson

_config.yml

@@ -7,6 +7,6 @@ gems:
 - jekyll-paginate
 google_analytics: UA-125947352-1
 images: /resources/images
-latestGafferVersion: 1.5.12.0
+latestGafferVersion: 1.5.13.0
 paginate: 1
 permalink: /news/:title/