[REF] Use the url_for_security function from flask-security
[FIX] Disable the confirmable flag to bypass the security
[IMP] Add Flask-Migrate and Alembic
[IMP] Add the default config file for Alembic
python-fosdem db init
[IMP] Add the initial migration
[IMP] Add the migration for ConfigParameter
[IMP] Add the ConfigParameter model