libparserutils-0.2.3-bp151.3.1

- Use typical SUSE RPM categories

- Remove sle11 support code
- Update to 0.2.3 release:
  * Few small patches in makefile nothing big
- Refresh patch libparserutils-optflags.patch

- libparserutils-optflags.patch Do not use Werror and do
  not define _BSD_SOURCE but GNU_SOURCE. (fix factory build)
- use std=gnu99 instead of strict c99.
- Doxygen should not generate timestamped html docs.

- Initial package of libparserutils inspiried by Fedora package