Core Plus 2.4.4

	* Set the packager to allow whitespace before the class declaration.
	* New form element: date input.  This uses jqueryui to render a datepicker on the form
	  element.
	* Some fixes for user permissions in multisite mode.  The permission cache is now cleared on
	  page load when multisite is enabled.
	* Added support for UUID column types in models.  These are treated exactly the same as IDs,
	  but their values are generated via Core instead of the underlying database system and they
	  are supported in multi-server modes.
	* Added support for "selectable" as an attribute on the <page> directive in component.xml
	  files.
	* Added support for UUID based model columns in the form system.  They are respected the
	  same as IDs.
	* Added support for Date based model columns in the form system.
	* Updated many of the form element styles.
	* Minor fix in the packager for CHANGELOG management.