-updated to asio 1.4.8

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10135 ddefafc4-47db-0310-ae44-fa13212b10f2
-add 64-bit VS2010 project settings for reTurn

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10136 ddefafc4-47db-0310-ae44-fa13212b10f2