rob boll 36a5323a47 altsrc: allow nested defaults in yaml files
Previously, defaults specified as nested keys in a yaml file would not
be recognized, i.e. `top: \n  bottom: key` would not be accessible using
the name `top.bottom`, but `top.bottom: key` would. These changes
support using nested keys by traversing the configuration tree if the
key name uses '.' as a delimiter.
2016-04-29 13:28:59 -04:00
..