Add 'name' as default acceptable fragment for XMI path
Add 'name' as default acceptable fragment for XMI path

Previous algorithm to compute URI fragment for each EObject was
relying only on '@feature_name.index'. This new version also take into
account the fact that an EObject can have a 'name' feature. This
current algorithm has a flaw as it only check if the 'name' attribute
exists for the EObject.

However, if a user enter a 'name' attribute in the instance and if
'name' is not a EAttribute of it's eclass, the XMI serialization will
use the 'name' even if it should not.

pyecore/pyecore,aranega/pyecore