change profile email add form to include them

fix #64 (first part)

fix #168

fix #179

fixes #163

fixes #175

truncate last event details label description

automatically determine past author from db
fixes #158

fixes #155

fix #140

monkeypatch relational models to allow generics
fix #109, as it is the beginnings of adding types

address points 1 and 2 of #140

guard contrib view with permission check