* fixed issue with release-notes page containing Liquid error: 757: u…
…nexpected token at 'Liquid error: No such file or directory - /Users/alex/Data/cloudsoft/dev/gits/brooklyn/docs/start/../../toc.json'

* fixed issue with getstartrelease notes page containing 404
added html file extension for the release-notes
Merge pull request #655 from pveentjer/docfixes

* fixed issue with release-notes page containing Liquid error: 757: u…