Fixed build on OSX (closes #56).

wjaskowski · wjaskowski · commit 1737ff0e1ba4 · 2016-05-04T19:30:10.000+02:00
It seems that &lt;iostream&gt; is necessary and it has to be included before
&lt;Python.h&gt;!
diff --git a/src/lib_python/ViZDoomGamePython.h b/src/lib_python/ViZDoomGamePython.h
@@ -27,6 +27,7 @@
 
 #include "ViZDoomGame.h"
 
+#include <iostream>
 #include <vector>
 #include <Python.h>
 #include <boost/python.hpp>
