gulp.task('styles', function () {
return gulp.src('scss/*.scss')
.pipe(sass({
includePaths: bourbone.includePaths
}).on('error', sass.logError))
.pipe(rename({suffix: '.min', prefix : ''}))
.pipe(autoprefixer({browsers: ['last 15 versions'], cascade: false}))
.pipe(minifycss())
.pipe(gulp.dest('app/css'))
.pipe(browserSync.stream());
});