[tor-talk] BridgeDB reCAPTCHA deployed

[Aaron]

BridgeDB's HTTPS distributor (https://bridges.torproject.org) now
requires a CAPTCHA to be solved before serving bridges.

The related tickets can be found here:
https://trac.torproject.org/projects/tor/ticket/5481

The CAPTCHA implementation used is reCAPTCHA. BridgeDB proxies
requests to the reCAPTCHA API servers so that visitors to
https://bridges.torproject.org connect only to
https://bridges.torproject.org.

--Aaron