Bug 127354 For template, relative path to template image does not work
Steps to reproduce: 1. Create a new template. 2. In the wizard, in Template Image, type a relative path to an image. For example, use an image in the project directory in which you are creating the template. Expected: It works. Actual: Error "Image file '<file name>' does not exist" shows in the UI. If you go ahead and create the template anyway, you cannot publish to the template folder, because Finish is not enabled.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ImageBuilder.java
inputButton.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
		inputButton.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent event )
			{
				openExpression( );
			}
		} );
		if ( selectedType == BLOB_TYPE )
		{
			bindingButton = new Button( innerComp, SWT.PUSH );
			bindingButton.setText( Messages.getString( "ImageBuilder.Label.Binding" ) ); 
			bindingButton.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
			bindingButton.addSelectionListener( new SelectionAdapter( ) {
				public void widgetSelected( SelectionEvent event )
				{
					openBidingDialog( );
				}
			} );
		}
		previewButton = new Button( innerComp, SWT.PUSH );
		previewButton.setText( DLG_PREVIEW_LABEL );
		previewButton.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_END ) );
		previewButton.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent event )
			{
				switch ( selectedType )
				{
					case URI_TYPE :
						uriEditor.setText( uriEditor.getText( ).trim( ) );
						preview( removeQuoteString( uriEditor.getText( ) ) );