Task 31122 section 4. Implement per-IP rate limiting of login attempts after some number of failures. * check_credentials has no reason to be public, make it private * add hooks to check for login cooldown on a source IP (remote_addr: http://werkzeug.pocoo.org/docs/0.14/wrappers/#werkzeug.wrappers.BaseRequest.remote_addr) basis * add baseline/default configuration of 60s cooldown * add baseline threshold of 10 login failures, after checking odoo.com logs it looks like we have short runs of up to 7 failures (assumed to be legitimate) before the user either gets it right or goes and looks it up Depends on #24187