Bug 148761 Unable to copy a report item from template to report
Steps: 1. Create a template, add a Text item "t1" or others 2. Create template item using "t1" 3. Double click the template item and we get a report item again. 4. We copy the item, paste to another report file. Expected: the text item can be copied. Actual result: Nothing happened, not copied and no error msg.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ElementDefn.java
* The property is shown in the property sheet but readonly.
	 */
	protected final static String READONLY_IN_PROPERTY_SHEET = "readonly"; 
	/**
	 * Whether this definition represents an abstract element that the user
	 * normally does not see. Abstract elements exist to organize the element
	 * system.
	 */
	protected boolean abstractElement = false;
	/**
	 * The name of base element, if any, from which this element extends.
	 */
	protected String extendsFrom = null;
	/**
	 * The parent Element meta-data object (specified by the "extendsFrom"
	 * value).
	 */
	protected ElementDefn parent = null;
	/**
	 * specify if the element has a style.
	 */
	protected boolean hasStyle = false;
	/**
	 * Flag used when caching meta data.
	 */
	protected boolean isBuilt = false;
	/**
	 * The predefined style, if any, for this element. The style name is the
	 * internal name.
	 */