Added a pattern to .gitignore to ignore those files in the future.

to json.

'ImplementedModuleClasses'. update UML figures accordingly.

further update though.

Changed the license to 3-clause BSD.
Changed various version numbers from 3.0 to 4.0.

- Fixed figure (simplified ModuleClasses)
- Moved section "Events" before "Arg"
- Corrected title for Constraint
- "Arg" to TOC

Fixed wrong characters in header.

* Added name attribute to DataTypes. This is mostly optional and not needed, but mandatory for elements of a struct.
* Changed cardinality of the occurrence of elements that are part of a list of elements (e.g. <Arg><Args>...</Args></Arg> from ?zero or more? to ?one or more? when the surrounding list element itself is optional* Added Constraints to DataTypes