kurso-de-esperanto-4.1.2-bp151.3.1

- Use convert -strip to make build reproducible (boo#1047218)

- Add kurso-de-esperanto-qt5.patch: Port to Qt5.
- Generate a basic licence file from a source code header:
  unfortunately, there is no COPYING attached to the tarball.
- Rename the .desktop file to br.com.kurso.kurso.desktop to match
  up-to-date freedesktop.org standards.
- Add a basic AppStream file.
- Move the .desktop file out of the spec-file.

- Initial package.