• Implement asynchronous subdomains resolution + various checks for security and concurrency. 604d0a1 efd51c4
• Use fully-qualified-domain-name when resolving to improve speed. 8e4995b See https://docs.rs/trust-dns-resolver/0.18.0-alpha.1/trust_dns_resolver/struct.Resolver.html#method.lookup_ip
• Implement return_facebook_token() function in the misc module. 3bf28a9
• Add information for developers. 41f9c89 Thanks to @ZeroDot1.