Method from_elan updated and method _generate_metafile updated.
Tests updated.
Graf module updated. Tier object changed, linguistic_typed added. AnnotationSpaces adding fixed. _add_node updated.
ELan parsed module updated.
Elan parser updated. Elan class Writer method write fixed and updated.
Regions added.
Annotation name fixed.
Module updated.
Test added and passing.
New tests added.
Script updated.
Script updated.