added isApiVersion() method in http client

Author: vimishor

lib/Bitbucket/API/Http/Client.php

@@ -206,6 +206,18 @@ public function setApiVersion($version)
         return $this;
     }
 
+    /**
+     * Check if specified API version is the one currently in use
+     *
+     * @access public
+     * @param  float $version
+     * @return bool
+     */
+    public function isApiVersion($version)
+    {
+        return (abs($this->options['api_version'] - $version) < 0.00001);
+    }
+
     /**
      * {@inheritDoc}
      */