* Update link in the README to the main JSON-Java repo

* Cleans up some warnings
* Adds new test for bug https://github.com/stleary/JSON-java/issues/332
* Adds some resource handling for string writers using pre-java1.7
support. I know StringWriters don't need a close method called, but the
tests should still handle their resources properly.

src/test/java/org/json/junit/MyEnumField.java

@@ -3,6 +3,7 @@ package org.json.junit;
 /**
  * An enum that contains getters and some internal fields
  */
+@SuppressWarnings("boxing")
 public enum MyEnumField {
     VAL1(1, "val 1"),
     VAL2(2, "val 2"),
@@ -15,12 +16,13 @@ public enum MyEnumField {
         this.intVal = intVal;
     }
     public String getValue() {
-        return value;
+        return this.value;
     }
     public Integer getIntVal() {
-        return intVal;
+        return this.intVal;
     }
+    @Override
     public String toString(){
-        return value;
+        return this.value;
     }
 }