add contentRange api

js/www@daplie.com.js

@@ -140,6 +140,21 @@ OAUTH3._pkgs['www@daplie.com'] = {
       return result;
     });
   }
+, contentRange: function (opts) {
+    var providerUri = opts.audience;
+    var session = opts.session;
+
+    return OAUTH3.request({
+      method: 'GET'
+    , url: OAUTH3.url.normalize(providerUri)
+        + '/api/www@daplie.com/acl/fs/' + opts.hostname
+        + '?' + OAUTH3.utils.query.stringify({ tld: opts.tld, sld: opts.sld/*, sub: opts.sub*/, path: opts.path
+          , offset: opts.offset, length: opts.length, json: true })
+    , session: session
+    }).then(function (result) {
+      return result;
+    });
+  }
 , remove: function (opts) {
     var providerUri = opts.audience;
     var session = opts.session;