unescapeHtml3
Description: This function unescapes a string containing HTML 3 entity to a string containing the actual Unicode characters corresponding to the escapes. Supports only HTML 3.0 entities.
Subject Type: String
Arguments: No arguments
Return Type: String
Examples: If the "message" attribute is '"bread" & "butter"', then the Expression ${message:unescapeHtml3()}
will return '"bread" & "butter"'