Fixed issues
- Improved general stability.
- In the work breakdown view, manually ordering activities was sometimes difficult.
- In the report view, style rules were sometimes evaluated in a wrong order.
- The ordering of mind map nodes could be wrong in exported images.
- The menu item "Format > Clear Style" did not remove manual styles from within table cells.
- Sometimes the horizontal alignment did not work in the status column.
- With activated grouping, the menu items for expanding and collapsing did not work.
- The columns "Expected Start Slack" and "Expected End Slack" were not always calculated correctly with activated grouping.
