[boost] Calling for 1.38 news items / library changes and additions.

Just a quick reminder to everyone that since the 1.38 release is now in progress we're looking for items to go in the news/what's new section of the 1.38 release notes. Items should be added to the quickbook file website/public_html/beta/feed/history/boost_1_38_0.qbk, then cd into website/public_html/beta and run bjam. If there are no errors then commit (should be 3 changed files) and check the result looks OK at http://beta.boost.org/users/news/version_1_38_0. If there are any problems then please post the content in reply to this message. Regards, John Maddock.