Re-enable PropertiesBasedResumableProcesserTest, backport AsyncHttpClient#53

Author: Stephane Landelle

src/test/java/com/ning/http/client/resumable/PropertiesBasedResumableProcesserTest.java

@@ -23,7 +23,7 @@
  * @author Benjamin Hanzelmann
  */
 public class PropertiesBasedResumableProcesserTest {
-    @Test (enabled = false)
+    @Test
     public void testSaveLoad()
             throws Exception {
         PropertiesBasedResumableProcessor p = new PropertiesBasedResumableProcessor();