Merge: neo: Fix definition lists

Fix the code that load relationships between a property or a class and its definitions.

Pull-Request: #841
Reviewed-by: Alexandre Terrasa <alexandre@moz-code.org>
Reviewed-by: Jean Privat <jean@pryen.org>

diff --cc src/neo.nit
index f9d3c9a,ce5ba94..df2792c
--- 1/src/neo.nit
--- 2/src/neo.nit
+++ b/src/neo.nit
@@@ -81,8 -80,9 +81,7 @@@
  # `MClassDef`
  #
  # * labels: `MClassDef`, `model_name` and `MEntity`.
- # * `is_intro`: Does this definition introduce the class?
  # * `location`: origin of the definition. SEE: `Location.to_s`
 -# * `parameter_names`: JSON array listing the name of each formal generic
 -# parameter (in order of declaration).
  # * `(:MClassDef)-[:BOUNDTYPE]->(:MClassType)`: bounded type associated to the
  # classdef.
  # * `(:MClassDef)-[:MCLASS]->(:MClass)`: associated `MClass`.