Record iter doesn't handle list of records

[ghost]

When casting a record as dict, any lists within the record are not converted to dicts.
An example of this is tagged_vlans for interfaces.

The following update to the Record iter resolves the issue:

        for i in dict(self._init_cache):
            cur_attr = getattr(self, i)
            if isinstance(cur_attr, Record):
                yield i, dict(cur_attr)

            ####################
            # Correctly handle lists
            elif isinstance(cur_attr, list):
                l=[]
                for j in cur_attr:
                  if isinstance(j,Record):
                     l.append(dict(j))
                  else:
                     #Handle list of non-Records. tags are list of strings
                     l.append(j)
                yield i, l
            #####################

            else:
                yield i, cur_attr