added notes to settings.yaml

moved core app config (name, version) out of settings and into app/app_settings.py
added ability to brand SneakyScope to any name
added caching of cert information from crt.sh (cache enable and lenght is configurable in settings.yaml)

streamlined header/footer loading to be more correct

app/wsgi.py

@@ -9,7 +9,7 @@ from . import create_app
 # Gunicorn will look for "app"
 app = create_app()
 
-from app.state import set_rules_engine, get_rules_engine
+from app.state import set_rules_engine
 from app.logging_setup import get_app_logger
 from app.rules.factory import build_rules_engine