Development for stleary#516 completed with rebased repository

- Introduced JSONObject(int) constructor.
   - int > Initial capacity of the underlying data structure

- Test for new introduced JSONArray(int) constructor.
   1. Checked with input parameter: 0
   2. Checked with input parameter: positive number
   3. Checked with positive number input parameter and compared length
   4. If input parameter is negative number JSONException is thrown:
         JSONArray initial capacity cannot be negative.

src/main/java/org/json/JSONArray.java

@@ -205,6 +205,22 @@ public class JSONArray implements Iterable<Object> {
         }
     }
 
+    /**
+     * Construct a JSONArray with the specified initial capacity.
+     *
+     * @param initialCapacity
+     *            the initial capacity of the JSONArray.
+     * @throws JSONException
+     *             If the initial capacity is negative.
+     */
+    public JSONArray(int initialCapacity) throws JSONException {
+    	if (initialCapacity < 0) {
+            throw new JSONException(
+                    "JSONArray initial capacity cannot be negative.");
+    	}
+    	this.myArrayList = new ArrayList<Object>(initialCapacity);
+    }
+
     @Override
     public Iterator<Object> iterator() {
         return this.myArrayList.iterator();