* Changed: *addLinkToPluginDescription()* and *addLinkToPluginTitle()* to accept variadic parameters.
* Fixed: an issue that date picker script caused an irregular element to be inserted around the page footer.
* Changed: the documentation compatible with the DocBlock syntax.
* Changed: the documentation compatible with the DocBlock syntax.
* Added: the documentation guideline.
* Added: an example of using *addLinkToPluginDescription()* and *addLinkToPluginTitle()* in the demo plugin.
* Changed: the demo plugins file name.
* Changed: the documentation compatible with the DocBlock syntax.
* Changed the version number to 2.0.0.b2.