#275 Python3: Parameterized Queries, Part VI

[Al von Ruff]

Finish of parameterized query support in mod, nightly, and rest:

• mod/ca_new.py
• mod/ka_new.py
• mod/marque.py
• mod/pa_new.py
• mod/pa_update.py
• mod/ta_unmerge.py
• nightly/database_stats.py
• nightly/links_in_notes.py
• nightly/nightly_cleanup.py
• nightly/shared_cleanup_lib.py
• nightly/slow_queries.py
• nightly/suspect_data.py
• nightly/wiki.py
• rest/submission.py

Also, added a database update time for Private Servers on the home page:

• biblio/index.py