cxref-1.6e-bp151.3.1

- Add cxref-new_float_types.patch from upstream to add new float types.

- Add allow_redirect_of_cxref_cpp_configure_output_in_postinst.patch from
  Debian.

- Update to 1.6e
  * see ChangeLog for details
- Cleanup spec file with spec-clener
- Use url for source
- Add gpg signature
- Update project url

- Repackage as tar.bz2 so that it can build on older distibutions.

- Update to 1.6d:
  Bug fixes
    Updated for latest version of autoconf.
    Allow structure initialisers to have multiple components
    (e.g. a.b=1).
    Remove gcc warning messages.
    Change Makefile for better comptibility with FreeBSD.
- Explicit require automake, autoconf and libtool.
- Repackage as tar.xz.

- Initial package