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  Javascript Modular Logging Library
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 * Copyright 2011, Jarod Law Ding Yong <dingyong.law@gmail.com>
 * Dual licensed under the MIT or GNU GPL Version 3 licenses.
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html


This logger is different from other loggers available on the net.
It allows you to setup a specific logger for a module, and collect logs history.
It comes with a logger level too.

The logging method is exactly the same as your browser native console, or firebug if you have one.
Supporting Browser: Any Browser with console
*Tips: use firebug-lite if you want a nice view in old browser.

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Example Usage:
==============

Logging:
--------

// Register a module logger, p is now logger for 'App.Login'
var p = JSLog.Register('App.Login');

// Log something, and it will display "[App.Login] something" in your console;
p.log('something');

// You can do something as usual:
p.warn('warning!');
p.info('info msg');


Log Level:
----------
The Logger comes with 5 level of logging access: 1-5
which coresponding to: 'error', 'warn', 'info', 'debug', 'log'

// You can set your level like this, to display only info message in console
p.SetLevel(3);

// You can get your current logging level with:
p.GetLevel();


Logging History:
----------------
The logger records your logs and you can Dump it later!

// Dump by Module Name
JSLog.Dump('App.Login');

// Dump all modules in nested view
JSLog.Dump();

// Selective Dump by filtering module name:
JSLog.SetFilter('module-name');
JSLog.Dump();  // Will exclude 'module-name' module

// Clear filter by module name:
JSLog.UnsetFilter('module-name');

// Get assigned filters
JSLog.GetFilter();