Made scoped_malloc_t::swap be private again.
Merge branch 'sam_cleanup_operations' into sam_cleanup_operations_cc
Merge branch 'sam_cleanup_operations_cc' into sam_cleanup_expiration
Merge branch 'sam_cleanup_expiration' into sam_cleanup_max_block_size
Merge branch 'sam_cleanup_max_block_size' into sam_cleanup_page_serbuf