juliocamarero/liferay-portal — pull request #2418 by neilking (2013-09-25 08:57:19+00:00)
Title: LPS-39477

Basic change:
1 Change the error message to be localizable
2 Removed the task name from the error message when the error msg is a string, because publish_process_message.jsp is only referenced by within the item there's other column displays task name/file name
3 Overwrite the handleException in LayoutExportBackgroundTaskEcecutor & PortletEcportBackgroundTaskExecutor returns json string instead err mag directly the same method as BaseStagingBackgroundTaskExecutor does.