### LOGOUT -- present a full logout link
- Syntax: `%LOGOUT%`
- Expand to: [[Main/WebHome?logout=1]]
- Related: [[TWikiUserAuthentication]], [[SESSIONID|Main/VarSESSIONID]], [[SESSIONVAR|Main/VarSESSIONVAR]], [[LOGIN|Main/VarLOGIN]], [[SESSION_VARIABLE|Main/VarSESSION_VARIABLE]]