Bug 880983 - update Mozilla style guide with link to FxOS brand guidelines pdf

Added a new paragraph and trans block to the brand guidelines PDF.
Bug 865376 - "Other languages" link on firefox/all/ downloads goes to nothing

Simply hide the localized-testing section when no test builds are
available.
Merge pull request #954 from kyoshino/bug-865376-other-lang
Fix bug 881929 - add stopwatching blog post to home page news
Merge pull request #962 from chrismore/patch-3

Bug 880983 - update Mozilla style guide with link to FxOS brand guidelines
Merge pull request #964 from craigcook/master
Improve docs on running Bedrock locally
Bug 882392 add /partnerships link to bedrock base.html footer
Merge pull request #965 from retornam/bug-882392-update-footer-templates
Merge pull request #743 from dpoirier/bedrock-doc