Bug 173236 NPE is thrown when opening a design file that is created by a higher version BIRT
1. New a report, switch to xml-source view. 2. Edit the version number in line 2, from 3.2.10 to 3.2.11 and save. 3. Close the report and reopen it. The xml-source view is opened automatically. Switch to lay-out view, there's an error message window, and NPE is thrown in error-log view. When user is trying to open a design file that is created by a higher version BIRT, model will throw an exception and stop parsing the report design file. UI should 1. Prevent the NPE 2. Telling user that he is using a higher version design file that this build does not support. (Catch the exception and reflect the message in the exception to end user)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/DesignParserException.java
* An parameter in an Action is missing the "name" value.
	 */
	public static final String DESIGN_EXCEPTION_ACTION_PARAMETER_NAME_REQUIRED = MessageConstants.DESIGN_PARSER_EXCEPTION_ACTION_PARAMETER_NAME_REQUIRED;
	/**
	 * Break the restriction that "occurrence == 1" for a choice type.
	 */
	public static final String DESIGN_EXCEPTION_CHOICE_RESTRICTION_VIOLATION = MessageConstants.DESIGN_PARSER_EXCEPTION_CHOICE_RESTRICTION_VIOLATION;
	/**
	 * User-defined message is missing the "resouece-Key" value.
	 */
	public static final String DESIGN_EXCEPTION_MESSAGE_KEY_REQUIRED = MessageConstants.DESIGN_PARSER_EXCEPTION_MESSAGE_KEY_REQUIRED;
	/**
	 * Two translations with the same locale appeared in a User-defined message.
	 */
	public static final String DESIGN_EXCEPTION_DUPLICATE_TRANSLATION_LOCALE = MessageConstants.DESIGN_PARSER_EXCEPTION_DUPLICATE_TRANSLATION_LOCALE;
	/**
	 * The property name or member name is required.
	 */
	public static final String DESIGN_EXCEPTION_NAME_REQUIRED = MessageConstants.DESIGN_PARSER_EXCEPTION_NAME_REQUIRED;
	/**
	 * The property is not a structure list.
	 */
	public static final String DESIGN_EXCEPTION_WRONG_STRUCTURE_LIST_TYPE = MessageConstants.DESIGN_PARSER_EXCEPTION_WRONG_STRUCTURE_LIST_TYPE;
	/**
	 * The property is not an extended property.
	 */
	public static final String DESIGN_EXCEPTION_WRONG_EXTENDED_PROPERTY_TYPE = MessageConstants.DESIGN_PARSER_EXCEPTION_WRONG_EXTENDED_PROPERTY_TYPE;
	/**
	 * The structure name is invalid.
	 */