Merge branch 'master' of https://github.com/Schibsted-Tech-Polska/stp.grunt
Revert "Merge branch 'refs/heads/grunt-retinacheck'"

This reverts commit 21d0e5d3b227c7c7f5eb286385b29dca1171daaa, reversing
changes made to 0c0d424725afceebfcbc6e3e0a0938afde0ace81.