Merge branch 'develop'
diff --git a/README.md b/README.md
index 6e2aa05..2ff11b9 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@
 3. Once the build finishes you will get a Phar in `build/artifacts`, and a set of API documentation.
    Assuming you have copied the Phar to your current working directory, to use the client, simply
 
-        require_once("predictionio.phar");    
+        require_once("predictionio.phar");
 
 
 Supported Commands
@@ -164,7 +164,23 @@
 try {
     // assume you have created an itemsim engine named 'engine2'
     // we try to get top 10 similar items for an item (item ID 6)
-    $command = $client->getCommand('itemsim_get_top_n', array('pio_iid' => '6', 'pio_engine' => 'engine1', 'pio_n' => 10));
+    $command = $client->getCommand('itemsim_get_top_n', array('pio_iid' => '6', 'pio_engine' => 'engine2', 'pio_n' => 10));
+    $rec = $client->execute($command);
+    print_r($rec);
+} catch (Exception $e) {
+    echo 'Caught exception: ', $e->getMessage(), "\n";
+}
+```
+
+
+Retrieving Ranking of Items for a User
+--------------------------------------
+
+```PHP
+try {
+    // assume you have created an itemrank engine named 'engine3'
+    // we try to get ranking of 5 items (item IDs: 1, 2, 3, 4, 5) for a user (user ID 7)
+    $command = $client->getCommand('itemrank_get_ranked', array('pio_uid' => '7', 'pio_iids' => '1,2,3,4,5', 'pio_engine' => 'engine3'));
     $rec = $client->execute($command);
     print_r($rec);
 } catch (Exception $e) {
diff --git a/build.xml b/build.xml
index a86d747..d959425 100644
--- a/build.xml
+++ b/build.xml
@@ -46,9 +46,11 @@
         <include name="vendor/symfony/class-loader/Symfony/Component/ClassLoader/UniversalClassLoader.php" />
         <include name="vendor/symfony/event-dispatcher/**/*.php" />
       	<include name="vendor/guzzle/guzzle/src/Guzzle/**/*.php" />
+        <include name="vendor/guzzle/guzzle/src/Guzzle/Http/Resources/cacert.pem" />
+        <include name="vendor/guzzle/guzzle/src/Guzzle/Http/Resources/cacert.pem.md5" />
       </fileset>
       <metadata>
-	      <element name="author" value="PredictionIO" />
+        <element name="author" value="PredictionIO" />
       </metadata>
     </pharpackage>
     <exec command="apigen -s src -d docs --title 'PredictionIO API PHP Client'" passthru="true" />
diff --git a/composer.json b/composer.json
index d30709a..fd4343b 100644
--- a/composer.json
+++ b/composer.json
@@ -2,22 +2,30 @@
     "name": "predictionio/predictionio",
     "type": "library",
     "description": "PredictionIO API PHP Client",
-    "keywords": ["predictionio", "tappingstone", "rest", "restful", "web service", "prediction", "recommendation"],
+    "keywords": [
+        "predictionio",
+        "tappingstone",
+        "rest",
+        "restful",
+        "web service",
+        "prediction",
+        "recommendation"
+    ],
     "homepage": "http://prediction.io",
     "license": "Apache-2.0",
     "authors": [
-    	{
-    	    "name": "The PredictionIO Team",
-    	    "email": "help@tappingstone.com",
-    	    "homepage": "http://prediction.io"
-    	}
+        {
+            "name": "The PredictionIO Team",
+            "email": "help@prediction.io",
+            "homepage": "http://prediction.io"
+        }
     ],
     "require": {
-    	"php": ">=5.3.2",
-    	"guzzle/guzzle": "~3.8.0"
+        "php": ">=5.3.2",
+        "guzzle/guzzle": "~3.8.0"
     },
     "require-dev": {
-    	"symfony/class-loader": "*"
+        "symfony/class-loader": "*"
     },
     "autoload": {
         "psr-0": {
diff --git a/src/PredictionIO/Command/ItemrankGetRanked.php b/src/PredictionIO/Command/ItemrankGetRanked.php
new file mode 100644
index 0000000..317c41d
--- /dev/null
+++ b/src/PredictionIO/Command/ItemrankGetRanked.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace PredictionIO\Command;
+
+use Guzzle\Http\Message\RequestInterface;
+use Guzzle\Service\Command\AbstractCommand;
+
+/**
+ * ItemRank Engine Get Items Ranking for a User
+ *
+ * Retrieve ranking of items for this specific user.
+ *
+ * @guzzle engine type="string" required="true"
+ * @guzzle iids type="string" required="true"
+ */
+class ItemrankGetRanked extends AbstractCommand
+{
+    /**
+     * Set the "engine" parameter for the current command
+     *
+     * @param string $engine Engine Name
+     *
+     * @return ItemrankGetRanked
+     */
+    public function setEngine($engine)
+    {
+        return $this->set('pio_engine', $engine);
+    }
+
+    /**
+     * Set the "iids" parameter for the current command
+     *
+     * @param string $iids Comma-separated list of Item IDs
+     *
+     * @return ItemrankGetRanked
+     */
+    public function setIids($iids)
+    {
+        return $this->set('pio_iids', $iids);
+    }
+
+    /**
+     * Create the request object that will carry out the command. Used internally by Guzzle.
+     */
+    protected function build()
+    {
+        $this->set('pio_uid', $this->client->getIdentity());
+        $this->request = $this->client->createRequest(
+            RequestInterface::GET,
+            'engines/itemrank/' . $this->get('pio_engine') . '/ranked',
+            null,
+            $this->getAll()
+        );
+    }
+}