Wrote a big honking comment about global_page_repl_t concerns.
Made one_per_thread_t go back to using scoped_ptr_t (we don't want data accessed on different threads to all be right next to one another in the same buffer or cache lines).
Made one_per_thread_t use simple bind objects instead of manually declared callables.
Removed object_buffer.hpp inclusion from one_per_thread.hpp.
Made one_per_thread_t use a variadic construct method when binding.
Made one_per_thread_t have a variadic constructor.