Remove unnecessary "brefore_script" from travis config
Remove unnecessary "brefore_script" from travis config

terkill/gulp-preprocess,yesmeck/gulp-preprocess,jhtep/gulp-preprocess,activenode/gulp-preprocess,terkill/gulp-preprocess,jhtep/gulp-preprocess,arma-gast/gulp-preprocess,yesmeck/gulp-preprocess,activenode/gulp-preprocess,arma-gast/gulp-preprocess,patlux/gulp-preprocess,patlux/gulp-preprocess