GEM remote: https://rubygems.org/ specs: execjs (2.0.2) json (1.8.1) libv8 (3.16.14.3) ref (1.0.5) sass (3.3.6) therubyracer (0.12.1) libv8 (~> 3.16.14.0) ref uglifier (2.5.0) execjs (>= 0.3.0) json (>= 1.8.0) PLATFORMS ruby DEPENDENCIES sass therubyracer uglifier