Travis must build non-optimized assets due to pseudo classes

.travis.yml

@@ -41,7 +41,7 @@ matrix:
       env:
         - CXX=g++-4.8
       install: yarn install
-      script: yarn run test:visual:run -- --no-clean
+      script: yarn run test:visual:run
 
 # Limit clone depth to 5, to speed up build
 git:

scripts/test/visual/run

@@ -28,4 +28,4 @@ if [[ ! -d `npm bin` ]]; then
 fi
 
 # Run command
-`npm bin`/gulp tests:visual:run --clean "$@"
+`npm bin`/gulp tests:visual:run --clean --no-optimize "$@"