child= argument broken for multiple children

[FodT]

from service.py:

# TODO: known bug here with iterator children.
# For instance, if you get('strategies', 123, child='concepts'),
# API returns a structure as if you just requested the concepts
# but had that limit. This is new so whatever, just take the first
# and be happy with it.

fix to return valid generator of Entities

[FodT]

Fixed way back by #53