Switch to the develop branch.
Only start 2 * num_queues worker threads initially.  num_queues is generally
equal to the number of cores reported by Erlang (info.scheduler_threads) which
is either determined automatically by the Erlang BEAM runtime or via the +S
flag.  The minimum num_queues is 2, so the minimum number of workers is 4.  The
maximum number of workers is ASYNC_NIF_MAX_WORKER_QUEUE_SIZE (currently set to
128), but that would only happen if there were 64 cores (or you set +S 64:64 at
startup).
Remove support for bzip2.  Change build_deps.sh to only remove the
build files from wiredtiger when cleaning rather than all the files.
Merge branch 'master' of github.com:basho-labs/wterl

Conflicts:
	c_src/wiredtiger-build.patch