Replaced boost::bind in arch/address.cc.
Removed a boost::bind in arch/timing.cc.
Made rpc/mailbox/mailbox.cc use std::bind.
Replaced a boost::bind in cluster.cc.
Removed another boost::bind in cluster.cc.
Removed another boost::bind from cluster.cc.
Removed another boost::bind from cluster.cc.
Applied some leet hacks to pmap.hpp so that it would be nice to std::bind callables on gcc 4.4.
Removed boost::bind from cluster.cc.
Removed boost::bind from backfill_progress.cc.
Removed boost::bind from heartbeat.cc.
Removed boost::bind from namespace_interface.cc.
Merge branch 'sam_std_bind_cc' into sam_alt

Conflicts:
	src/arch/runtime/coroutines.hpp
Merge branch 'sam_alt' of github.com:rethinkdb/rethinkdb into sam_alt