Bug 149617 Support Content-type-based editor lookup
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/ReportPlugin.java
*/
	public void setDefaultTemplatePreference( )
	{
		String defaultDir = new String( UIUtil.getHomeDirectory( ) );
		defaultDir = defaultDir.replace( '\\', '/' ); 
		if ( !defaultDir.endsWith( "/" ) ) 
		{
			defaultDir = defaultDir + "/"; 
		}
		defaultDir = defaultDir + TemplatePreferencePage.DIRCTORY;
		if ( !defaultDir.endsWith( "/" ) ) 
		{
			defaultDir = defaultDir + "/"; 
		}
		getPreferenceStore( ).setDefault( TEMPLATE_PREFERENCE, defaultDir );
	}
	/**
	 * Return default template preference
	 * 
	 * @return String The string of default template preference
	 */
	public String getTemplatePreference( )
	{
		return getPreferenceStore( ).getString( TEMPLATE_PREFERENCE );
	}
	/**
	 * set default template preference
	 * 
	 */
	public void setTemplatePreference( String preference )