For compattibility with Url::asset() and Html::style/script()

[arturmamedov]

Why?
Because when we install Laravel in to a sub folder (ex: /laravelapp) we need to refer all our assets urls to this subfolder.

And laravel stuff yet do this in example Html::script('') return http://domain.com/laravelapp because it look what is set in app.asset_url

Also all other Theme::style/script/image/linkAsset() will return url with subfolder included http://domain.com/laravelapp

But not for Theme::url() that use url() helper of Laravel that generate url from root and not in accord with config app.asset_url
so we need to replace it to asset() that work with assets and not app root url

[arturmamedov]

Or another proposal can be the creation of asset() method and secureAsset() like in Laravel UrlGenerator but in this way i think url() method become unused

[arturmamedov]

This test is not correct anyway :( cause i can't reproduce the subfolder installation in test. Laravel set app.url and app.asset_url for this, but in test i can't set it.
The only way is to forceRootUrl() but this is not standard.