pass hostname in the url instead of the POST body

lib/api/host.js

@@ -1,4 +1,5 @@
 var client = require("../client");
+var util = require("util");
 
 /*section: host
  *comment: mute the given host, if it is not already muted
@@ -27,22 +28,22 @@ function mute(hostname, options, callback){
         callback = options;
         options = {};
     }
-    var params = {
-        body: {
-            hostname: hostname
-        }
-    };
+    var params = {};
     if(typeof options === "object"){
+        params.body = {};   // create body property
         if(options.end){
             params.body.end = parseInt(options.end);
         }
         if(options.override){
             params.body.override = options.override;
         }
+    } else {
+        params.body = "";   // create empty body
     }
-    client.request("POST", "/host", params, callback);
+    client.request("POST", util.format("/host/%s/mute", hostname), params, callback);
 }
 
+
 /*section: host
  *comment: unmute the given host, if it is not already unmuted
  *params:
@@ -62,12 +63,8 @@ function mute(hostname, options, callback){
  *  ```
  */
 function unmute(hostname, callback){
-    var params = {
-        body: {
-            hostname: hostname
-        }
-    };
-    client.request("POST", "/host", params, callback);
+    var params = {body: ""};    // create empty body
+    client.request("POST", util.format("/host/%s/unmute", hostname), params, callback);
 }
 
 module.exports = {