update version to be consistent with python

wrapper/setup.py

@@ -28,7 +28,7 @@ if len(lib_path) == 0:
     raise XGBoostLibraryNotFound("XGBoost library not found. Did you run "
                                  "../make?")
 setup(name="xgboost",
-      version="0.32",
+      version="0.40",
       description="Python wrappers for XGBoost: eXtreme Gradient Boosting",
       zip_safe=False,
       py_modules=['xgboost'],

wrapper/xgboost.py

@@ -1,8 +1,8 @@
 # coding: utf-8
-
 """
 xgboost: eXtreme Gradient Boosting library
 
+Version: 0.40
 Authors: Tianqi Chen, Bing Xu
 Early stopping by Zygmunt Zając
 """