Move config debug dump to config app
No need to specify Erlang ebin paths

Now that we have a proper OTP application structure we don't have to
list each path to start CouchDB.
Refactor boot procedure

Cleanup the order for booting CouchDB so that its a bit easier to
follow.
Update util_driver_dir for make dev

This updates that path to use src/couch instead of src/couchdb.