Bug 151361 default value for reousrce folder user preference
When user does not sepecify the resourec foler user preference, can we make the current project folder (in IDE) or the current report design file's folder (in RCP) as the default value for the resource folder. This way, by default the current project folder is the resource folder where user can create their libs and images. Also please set the default user preference to be null when BIRT is freshly installed.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/ReportPlugin.java
}
	/**
	 * set enable default comment preference
	 * 
	 */
	public void setDefaultEnableCommentPreference( )
	{
		getPreferenceStore( ).setDefault( ENABLE_COMMENT_PREFERENCE, true );
	}
	/**
	 * Return default enable comment preference
	 * 
	 * @return boolean The bool value of default enable comment preference
	 */
	public boolean getDefaultEnabelCommentPreference( )
	{
		return getPreferenceStore( ).getDefaultBoolean( ENABLE_COMMENT_PREFERENCE );
	}
	/**
	 * Return enable comment preference
	 * 
	 * @return boolean The bool value of enable comment preference
	 */
	public boolean getEnableCommentPreference( )
	{
		return getPreferenceStore( ).getBoolean( ENABLE_COMMENT_PREFERENCE );
	}
	/**
	 * set enable comment preference
	 *