Added the following enhancements
- Added some new menus in Autofit for arranging objects more easily and quickly.
- Added new built-in functions for complex processing.
- An initial value of the height of page header/footer is changed to the margin of the paper.
- The not-printed object became displayed explicitly in the layout pane.
Corrected bugs as follows
- The input of the character of the text object has been adjusted.
- The display of the frame of table header has been adjusted.
