[TASK] Allow errors on gulp serve

gulp/tasks/javascript.js

@@ -3,6 +3,9 @@ module.exports = function (gulp, plugins, config, env) {
     return gulp.src('app.js')
       .pipe(env.development(plugins.sourcemaps.init()))
       .pipe(plugins.requirejsOptimize(env.production() ? config.requireJs.prod : config.requireJs.dev))
+      .on('error', function () {
+        this.emit('end');
+      })
       .pipe(env.production(plugins.uglify({ output: { comments: 'all' } })))
       .pipe(env.development(plugins.sourcemaps.write('.', { addComment: true })))
       .pipe(gulp.dest(config.build));

gulp/tasks/sass.js

@@ -6,6 +6,9 @@ module.exports = function (gulp, plugins, config, env) {
         outputStyle: 'compressed',
         sourceMap: false
       }))
+      .on('error', function () {
+        this.emit('end');
+      })
       .pipe(plugins.autoprefixer({
         browsers: config.autoprefixer
       }))