Reva: Login/Logout

Visitors may enter anonymous as the user-ID with the 8-character hexadecimal password shown below:

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|  __ \  / _ \  / ____| / _ \ |  _ \ |__ \  / _ \  / ____|
| |  | || (_) || |     | | | || |_) |   ) || (_) || |     
| |  | | > _ < | |     | | | ||  _ <   / /  > _ < | |     
| |__| || (_) || |____ | |_| || |_) | / /_ | (_) || |____ 
|_____/  \___/  \_____| \___/ |____/ |____| \___/  \_____|