Fix to new style-system not minifying output.

The new style updates were not minifying their final output. This fixes
that issue. We are keeping minification in the HTML task too in case
folks are still using build blocks.

gulpfile.js

@@ -96,6 +96,8 @@ gulp.task('styles', function () {
     )
     .pipe($.autoprefixer(AUTOPREFIXER_BROWSERS))
     .pipe(gulp.dest('.tmp/styles'))
+    // Concatenate And Minify Styles
+    .pipe($.if('*.css', $.csso()))
     .pipe(gulp.dest('dist/styles'))
     .pipe($.size({title: 'styles'}));
 });
@@ -123,6 +125,7 @@ gulp.task('html', function () {
       ]
     })))
     // Concatenate And Minify Styles
+    // In case you are still using useref build blocks
     .pipe($.if('*.css', $.csso()))
     .pipe(assets.restore())
     .pipe($.useref())