Bug 136241 [regression]Preview template in web viewer and pdf didn't get correct effect.
Description: Preview template items in web viewer and pdf didn't get correct effect. Steps to reproduce: 1. Create template items. 2. Preview in Web Viewer and pdf. Expected result: Same effect as in html. Actual result: In web viewer, see only blank box. In pdf, blank page.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/Module.java
* Drops a Translation from the module.
	 * <p>
	 * 
	 * @param translation
	 *            the translation to be dropped from the module.
	 * 
	 * @return <code>true</code> if the report module contains the given
	 *         translation.
	 */
	public boolean dropTranslation( Translation translation )
	{
		return translations.remove( translation );
	}
	/**
	 * Finds a <code>Translation</code> by the message resource key and the
	 * locale.
	 * <p>
	 * 
	 * @param resourceKey
	 *            resourceKey of the user-defined message where the translation
	 *            is defined in.
	 * @param locale
	 *            locale for the translation. Locale is in java-defined format(
	 *            en, en-US, zh_CN, etc.)
	 * @return the <code>Translation</code> that matches. return null if the
	 *         translation is not found in the report.
	 */
	public Translation findTranslation( String resourceKey, String locale )
	{
		return translations.findTranslation( resourceKey, locale );