Merge 86398 which supplies a file missing from 86392.

[SVN r86490]

libs/Jamfile.v2

@@ -0,0 +1,16 @@
+# Jamfile.v2
+#
+# Copyright (C) 2013 Bjorn Roald
+#
+# Distributed under the Boost Software License, Version 1.0.
+# See www.boost.org/LICENSE_1_0.txt
+#
+# Boost libraries common project properties:
+#
+# Under modularized layout, ensure all inheriting projects get
+# implicit dependency to headers staged as links in <boost-root>/boost
+
+project boost/libs
+   : requirements <implicit-dependency>/boost//headers
+   : usage-requirements <implicit-dependency>/boost//headers
+   ;