lasem-0.4.3-bp151.3.1

- Modernize spec-file by calling spec-cleaner

- Fix RPM group and summaries.

- Add lasem-cairo-avoid-integer-overflow.patch cairo: Avoid integer
  overflow (CVE-2013-7447).

- Update to GNOME 3.20  Fate#318572

- Update to version 0.4.3:
  + Man page name fix.
  + Updated translations.

- Update to version 0.4.2:
  + Build improvements.
  + Add man page for lasem-render.
  + Updated translations.
- Drop lasem-bison-3.0.patch and lasem-nonvoid.patch: Fixed
  upstream.

- Add lasem-bison-3.0.patch: Fix build with bison 3.0.

- Initial package, version 0.4.1.
- Add lasem-nonvoid.patch: Fix no-return-in-nonvoid brp error.