Added minimal Docs for new macros and headers (abi fixing/link library selection/BOOST_HAS_DECLS|PEC), more to come on this...

Added test cases for new macros and headers.


[SVN r19655]

test/link/main.cpp

@@ -0,0 +1,14 @@
+//  (C) Copyright John Maddock 2003. Permission to copy, use, modify, sell and
+//  distribute this software is granted provided this copyright notice appears
+//  in all copies. This software is provided "as is" without express or implied
+//  warranty, and with no claim as to its suitability for any purpose.
+
+//  See http://www.boost.org for the most recent version.
+
+#include "link_test.hpp"
+
+int main()
+{
+   return check_options(dyn_link, dyn_rtl, has_threads, debug, stl_debug) ? 0 : -1;
+}
+