*/*: update NGINX JavaScript: 0.8.1 -> 0.8.2 (+)

<ChangeLog>

nginx modules:

*) Feature: introduced console object. The following methods

were introduced: error(), info(), log(), time(), timeEnd(),
warn().

*) Bugfix: fixed HEAD response handling with large Content-Length

in fetch API.

*) Bugfix: fixed items() method for a shared dictionary.

*) Bugfix: fixed delete() method for a shared dictionary.

Core:

*) Feature: extended "fs" module. Added existsSync().

*) Bugfix: fixed "xml" module. Fixed broken XML exception handling

in parse() method.

*) Bugfix: fixed RegExp.prototype.exec() with global regexp and

unicode input.

*) Bugfix: fixed return statement parsing with invalid expression.

</ChangeLog>