#155 list is broken

[Michele Gubian]

quietly include Models/ia.eNm
quietly ia stage
list type
OK
list pattern
OK
list representation
ANSWER: list of 0 objects
list conversion
.. includes connections
list observer, dataframe, input_port, layer
ANSWER: list of 0 objects
list connection
.. includes layers
.. etc.

[James S. Adelman]

Fixed on the name_handling branch, but it's not easily disentangled from other changes on that (not fully functional) branch. Will come whenever that's merged back in.