Merge branch 'generalize-oauth-mechanism' into bulma-frontpage

...lite/0002_alter_session_user_rename_pmsid_add_oauthid.sql

src/db_conn_sqlite.rs

src/db_objects.rs

src/functions.rs

src/main.rs

src/oauth_provider.rs

src/webfw_iron.rs

templates/index.hbs