Implemented strict http request serialization for APIs that forbid a session to be used in concurrent requests (e.g. dedimania).

Updated all API requests in DedimaniaPlugin to be serialized by this mechanism. Closes #139.

libs/curl-easy/cURL/RequestsQueue.php

@@ -217,4 +217,12 @@ class RequestsQueue extends EventDispatcher implements RequestsQueueInterface, \
 		}
 		return curl_multi_select($this->mh, $timeout) !== -1;
 	}
+
+	/**
+	 * @param $option
+	 * @param $value
+	 */
+	public function setOption($option, $value) {
+		curl_multi_setopt($this->mh, $option, $value);
+	}
 }