* Convert certain characters (&, <, >, and ') to their HTML character equivalents for literal display in web pages.
* @param {String} value The string to encode
* @return {String} The encoded text
* Convert certain characters (&, <, >, and ') to their HTML character equivalents for literal display in web pages.
* @param {String} value The string to encode
* @return {String} The encoded text
* Convert certain characters (&, <, >, and ') from their HTML character equivalents.
* @param {String} value The string to decode
* @return {String} The decoded text
* Convert certain characters (&, <, >, and ') from their HTML character equivalents.
* @param {String} value The string to decode
* @return {String} The decoded text