concrete5/concrete5 — pull request #1865 by dataneger (2014-12-18 15:52:29+00:00)
Title: removed rules that block (custom) js and css

Google has new ranking factors
- site speed
- mobile friendly

These ranking factors require google to render and parse the CSS and JS files.
Default robots.txt blocks these files from being indexed and therefor you get a low score on these ranking factors. I removed the lines that where blocking.