describePlace : a new method to factor code.
database version : portic_v5, port 5433 from now. Was tested as locally. Must be deployed in prod.
Minor fixes.

# Conflicts:
#	porticgaz.py

First commit of code publishing ports like a gazetteer, with full description using the linked place model.

First commit of code publishing ports like a gazetteer, with full description using the linked place model.