Add BOOST_NO_CXX11_RANGE_BASED_FOR macro. Fix a bunch of .ipp files with incomplete _cxx11 name changes.

[SVN r79404]

test/boost_no_constexpr.ipp

@@ -10,7 +10,7 @@
 //  TITLE:         C++0x constexpr unavailable
 //  DESCRIPTION:   The compiler does not support C++0x constexpr
 
-namespace boost_no_constexpr {
+namespace boost_no_cxx11_constexpr {
 
 void quiet_warning(int){}