Changelog

• extended Converger component to add support for nested loops
• added workflow status icons to workflow runtime tab
• added support for macros to Excel component's export function
• Excel component exports to clipboard with Excel-like insertion
• fixed copying a workflow component in the workflow editor (the copied component had the same name as the orgin one)
• fixed bug with runtime variables, which causes errors under some special circumstances
• fixed some memory leaks
• fixed start up validators
• added validation to the workflow connection editor: it prohibts a connection between an input and more than one output (this would result in scheduling problems)
• minor fixes