Git-Support: Prepared release in own repository.

- Prepared release in own repository.
- Reformatted the readme in markdown.
- Extended the release script to copy all Git-Support files into their
  own directory.
Matlab-Support: Prepared release in own repository.

- Prepared release in own repository.
- Reformatted the readme in markdown.
- Extended the release script to copy all Matlab-Support files into their
  own directory.
Matlab-Support: Better support for custom maps.

- Use "normal!", "noremap" and "noremenu" consistently,
  to allow for custom maps.
- Verbose output of plug-in settings.
- Minor improvements.
- Documentation.