Merge pull request #2 from dimalev/master

bulk ajax appender to reduce server load
Updating change log
Merge pull request #4 from dimalev/master

Fixing IE8
Add timestamp to log messages
Merge pull request #5 from AlSkubiy/master

Add timestamp for messages
Bump to v0.0.5
JLog-Rails engine can be mounted several times
The output log file(s) is now configurable (default to Rails.logger)
An output formatter can be provided at the initialization
The JS is now compliant with default JSHint configuration
Bump version
Cleaned JLog.JS code
Updated the changelog
Bump version
Improved gemspec file
Set jQuery $.ajax 'global' setting to false to prevent the global handlers like ajaxStart or ajaxStop from being triggered.
refactoring JLog to be modular, testable and full-fleged.