Bug 168381 Table from library has errors when the report is inside a folder.[01][0001]
Description: Table from library displays errors when the report is inside a folder. Build number:2.1.2.v20061218 and 2.2.0.v20061216 Steps to reproduce: 1. New a library file with datasource, dataset and table. 2. New a folder under the project, and then new a report inside the folder. 3. Drag the table from libray to the report, save and close the report. 4. Reopen the report. Expected result: Show table item in Layout. Actual result: A red box with error message inside as attached. Error log:N/A
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
* Remove report editor page.
	 * 
	 * @param id
	 *            the page id.
	 */
	public void removePage( String id )
	{
		IFormPage page = findPage( id );
		if ( page != null )
		{
			removePage( page.getIndex( ) );
		}
	}
	/**
	 * Remove all report editor page.
	 */
	public void removeAllPages( )
	{
		for ( int i = pages.toArray( ).length - 1; i >= 0; i-- )
		{
			if ( pages.get( i ) != null )
				this.removePage( ( (IFormPage) pages.get( i ) ).getId( ) );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.EditorPart#doSave(org.eclipse.core.runtime.IProgressMonitor)
	 */
	public void doSave( IProgressMonitor monitor )