Add BOOST_PREDEF_VERSION def to indicate to users the version of this

library. Bump version to 1.1 for development.

include/boost/predef/version.h

@@ -0,0 +1,15 @@
+/*
+Copyright Rene Rivera 2014
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#ifndef BOOST_PREDEF_VERSION_H
+#define BOOST_PREDEF_VERSION_H
+
+#include <boost/predef/version_number.h>
+
+#define BOOST_PREDEF_VERSION BOOST_VERSION_NUMBER(1,1,0)
+
+#endif