Bug 181569 Inconsistent constant values for SortType defintion
In rom.def, the allowed values for SortType is "sort-on-group-key" and "complex-sort", but in DesignChoiceConstants, it's "sortOnGroupkey" and "complexSort". These values should be consistent.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/elements/DesignChoiceConstants.java
public static final String TARGET_NAMES_TYPE_TOP = "_top"; 
	/**
	 * templateElementType -- the template element type The first constant is
	 * the name of the templateElementType choice set. The followed constants
	 * are valid choice values of the templateElementType.
	 */
	public static final String CHOICE_TEMPLATE_ELEMENT_TYPE = "templateElementType"; 
	public static final String TEMPLATE_ELEMENT_TYPE_TABLE = "Table"; 
	public static final String TEMPLATE_ELEMENT_TYPE_FREEFORM = "FreeForm"; 
	public static final String TEMPLATE_ELEMENT_TYPE_DATA = "Data"; 
	public static final String TEMPLATE_ELEMENT_TYPE_GRID = "Grid"; 
	public static final String TEMPLATE_ELEMENT_TYPE_IMAGE = "Image"; 
	public static final String TEMPLATE_ELEMENT_TYPE_LABEL = "Label"; 
	public static final String TEMPLATE_ELEMENT_TYPE_LIST = "List"; 
	public static final String TEMPLATE_ELEMENT_TYPE_TEXT = "Text"; 
	public static final String TEMPLATE_ELEMENT_TYPE_EXTENDED_ITEM = "ExtendedItem"; 
	public static final String TEMPLATE_ELEMENT_TYPE_TEXT_DATA = "TextData"; 
	public static final String TEMPLATE_ELEMENT_TYPE_DATA_SET = "DataSet"; 
	/**
	 * sortType -- the sort type. The first constant is the name of the sortType
	 * choice set. The followed constants are valid choice values of the
	 * sortType.
	 */
	public static final String CHOICE_SORT_TYPE = "sortType"; 
	public static final String SORT_TYPE_NONE = "none"; 
	public static final String SORT_TYPE_SORT_ON_GROUP_KEY = "sortOnGroupkey"; 
	public static final String SORT_TYPE_COMPLEX_SORT = "complexSort"; 
	/**
	 * joinType -- join type of join condition.
	 */