renew outlog to 1.0.1

.gitignore

@@ -0,0 +1,2 @@
+.idea
+node_modules

gulpfile.babel.js

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+'use strict';
+
+import gulp from 'gulp';
+import source from 'vinyl-source-stream'
+import buffer from 'vinyl-buffer'
+import babel from 'babelify'
+import watchify from 'watchify'
+import sourcemaps from 'gulp-sourcemaps'
+import browserify from 'browserify'
+
+
+function compile(watch) {
+    let bundler = watchify(browserify('./src/index.js', {debug: true}).transform(babel));
+
+    function rebundle() {
+        bundler.bundle()
+            .on('error', (err)=> {
+                console.error(err);
+                this.emit('end');
+            })
+            .pipe(source('build.js'))
+            .pipe(buffer())
+            .pipe(sourcemaps.init({loadMaps: true}))
+            .pipe(sourcemaps.write('./'))
+            .pipe(gulp.dest('./build'));
+    }
+
+    if (watch) {
+        bundler.on('update', () => {
+            console.log('-> bundling...');
+            rebundle();
+        });
+    }
+
+    rebundle();
+}
+
+function watch() {
+    return compile(true);
+}
+
+gulp.task('build', () => {
+    return compile();
+});
+gulp.task('watch', () => {
+    return watch();
+});
+
+gulp.task('default', ['watch']);