This command fails at this line for me.

```
$ ./cuttlefish -e /Users/sean/dev/riak/dev/dev2/etc -d /Users/sean/dev/riak/dev/dev2/data/generated.configs -s /Users/sean/dev/riak/dev/dev2/lib -c /Users/sean/dev/riak/dev/dev2/etc/riak.conf -l debug effective
12:10:38.128 [debug] Lager installed handler error_logger_lager_h into error_logger
12:10:38.615 [debug] Lager installed handler lager_backend_throttle into lager_event
12:10:38.724 [debug] Cuttlefish set to debug level logging
12:10:38.727 [debug] cuttlefish `meffective`
12:10:38.727 [info] Application lager started on node nonode@nohost
12:10:38.727 [debug] SchemaFiles: ["/Users/sean/dev/riak/dev/dev2/lib/20-yokozuna.schema","/Users/sean/dev/riak/dev/dev2/lib/11-leveldb.schema","/Users/sean/dev/riak/dev/dev2/lib/10-multi_backend.schema","/Users/sean/dev/riak/dev/dev2/lib/06-riak_control.schema","/Users/sean/dev/riak/dev/dev2/lib/05-bitcask.schema","/Users/sean/dev/riak/dev/dev2/lib/04-riak_sysmon.schema","/Users/sean/dev/riak/dev/dev2/lib/03-riak_kv.schema","/Users/sean/dev/riak/dev/dev2/lib/02-riak_api.schema","/Users/sean/dev/riak/dev/dev2/lib/01-riak_core.schema","/Users/sean/dev/riak/dev/dev2/lib/00-riak.schema"]
12:10:38.778 [debug] ConfFiles: ["/Users/sean/dev/riak/dev/dev2/etc/riak.conf"]
escript: exception error: undefined function cuttlefish_generator:add_defaults/2
  in function  cuttlefish_escript:effective/1 (src/cuttlefish_escript.erl, line 104)
  in call from escript:run/2 (escript.erl, line 747)
  in call from escript:start/1 (escript.erl, line 277)
  in call from init:start_it/1 
  in call from init:start_em/1 
```