In _config.yml, put each excluded file on own line.
In _config.yml, put each excluded file on own line.

razor-x/jekyll-and-zurb,serixscorpio/serixscorpio.github.io,razor-x/jekyll-and-zurb,matthiasbeyer/wiki.template,rxfork/jekyll-and-zurb,matthiasbeyer/wiki.template,rxfork/jekyll-and-zurb,razor-x/jekyll-and-zurb,matthiasbeyer/wiki.template