Use beast for bind, placeholders, and function

BeastConfig.h

@@ -24,13 +24,12 @@
 
 #define BEAST_USE_BOOST 1
 
-// We bind functions that take references, which is
-// unsupported on some platforms
+// VFALCO TODO Fix this hack for using boost on FreeBSD
+//             We need to enforce a minimum library/g++ version.
 //
-// VFALCO TODO Rewrite functions to use pointers instead
-//             of references so we can get off boost::bind
-//
-//#define BEAST_BIND_USES_BOOST 1
+#if __FreeBSD__
+#define BEAST_BIND_USES_BOOST 1
+#endif
 
 #ifndef BEAST_USE_LEAKCHECKED
 #define BEAST_USE_LEAKCHECKED BEAST_CHECK_MEMORY_LEAKS