Update objenesis to 2.2

Just to keep up to date.

Their release notes: http://objenesis.org/notes.html

Author: magro

pom.xml

@@ -70,7 +70,7 @@
 		<dependency>
 			<groupId>org.objenesis</groupId>
 			<artifactId>objenesis</artifactId>
-			<version>2.1</version>
+			<version>2.2</version>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>