bump version to 1.2.3, remove application cache support

README.md

@@ -34,7 +34,7 @@ AriaNg is a modern web frontend making [aria2](https://github.com/aria2/aria2) e
 ![AriaNg](https://raw.githubusercontent.com/mayswind/AriaNg-WebSite/master/screenshots/mobile.png)
 
 ## Installation
-AriaNg now provides three versions, standard version, all-in-one version and [AriaNg Native](https://github.com/mayswind/AriaNg-Native). Standard version is suitable for deployment in the web server, and provides resource caching and on-demand loading. All-In-One version is suitable for local using, and you can download it and just open the only html file in browser. [AriaNg Native](https://github.com/mayswind/AriaNg-Native) is also suitable for local using, and is no need for browser. 
+AriaNg now provides three versions, standard version, all-in-one version and [AriaNg Native](https://github.com/mayswind/AriaNg-Native). Standard version is suitable for deployment in the web server, and provides on-demand loading. All-In-One version is suitable for local using, and you can download it and just open the only html file in browser. [AriaNg Native](https://github.com/mayswind/AriaNg-Native) is also suitable for local using, and is no need for browser. 
 
 #### Prebuilt release
 Latest Release: [https://github.com/mayswind/AriaNg/releases](https://github.com/mayswind/AriaNg/releases)

gulpfile.js

@@ -154,25 +154,6 @@ gulp.task('process-assets-bundle', ['prepare-fonts', 'prepare-langs', 'prepare-h
         .pipe(gulp.dest('dist'));
 });
 
-gulp.task('process-manifest', function () {
-    return gulp.src([
-        'dist/css/**',
-        'dist/js/**',
-        'dist/fonts/fontawesome-webfont.woff2',
-        'dist/*.html',
-        'dist/*.ico',
-        'dist/*.png'
-    ], {base: 'dist/'})
-        .pipe($.manifest({
-            hash: true,
-            preferOnline: true,
-            network: ['*'],
-            filename: 'index.manifest',
-            exclude: 'index.manifest'
-        }))
-        .pipe(gulp.dest('dist'));
-});
-
 gulp.task('process-full-extras', function () {
     return gulp.src([
         'LICENSE',
@@ -195,7 +176,7 @@ gulp.task('info', function () {
     ]).pipe($.size({title: 'build', gzip: true}));
 });
 
-gulp.task('build', $.sequence('lint', 'process-fonts', 'process-langs', 'process-assets', 'process-manifest', 'process-full-extras', 'info'));
+gulp.task('build', $.sequence('lint', 'process-fonts', 'process-langs', 'process-assets', 'process-full-extras', 'info'));
 
 gulp.task('build-bundle', $.sequence('lint', 'process-assets-bundle', 'process-tiny-extras', 'info'));