Merge pull request android-async-http#130 from jlopez/master

Add init() call to constructor

Author: loopj

src/com/loopj/android/http/RequestParams.java

@@ -98,6 +98,7 @@ public RequestParams(String key, String value) {
      * @throws IllegalArgumentException if the number of arguments isn't even.
      */
     public RequestParams(Object... keysAndValues) {
+      init();
       int len = keysAndValues.length;
       if (len % 2 != 0)
         throw new IllegalArgumentException("Supplied arguments must be even");