Revert "boost_1_56_0_rc1 release on Tue Jul 29 23:35:10 BST 2014"

This reverts commit ed3e8d038f6a9dda5bae6baf8b4a395be4348299.
boost_1_56_0_rc1 release on Tue Jul 29 23:49:33 BST 2014