Update: MathSheetGenerator v1.1.0

[roger]

What's new:

- Moved the font settings to a dedicated preferences window
- Added alternate symbols for divisions and multiplications to choose from.
NOTE: Not all symbols are supported by all fonts. Switch to a more compatible
symbol if the font selected is not capable of displaying the symbols correctly.
- Removed the equal sign from the math problems.
- Added the option to autimatically calculate the limits for the result.
- Improved the User Interface.
- Improved page layout.
- Added an option to include a Name Field at the top of each generated Sheet.
- Bug fixes.