Fix deprecated usage of boost/bind.hpp.

boost/bind.hpp emits compiler warnings about deprecation of the header
and global _N placeholders. This commit converts usage of this header
to boost/bind/bind.hpp and using namespace boost::placeholders.

Where boost::bind is not actually used, the includes are removed.

test/algorithm.cpp

@@ -35,9 +35,8 @@
 #endif
 
 #include <boost/assign.hpp>
-#include <boost/config.hpp>    
+#include <boost/config.hpp>
 #include <boost/array.hpp>
-#include <boost/bind.hpp>
 #include <boost/range/numeric.hpp>
 #include <boost/range/algorithm.hpp>
 #include <boost/range/value_type.hpp>