lpsolve-5.5.2.0-bp153.1.16

- Add xz to exact dependencies as it is needed on SLE11.

- Pass over with spec-cleaner in the specs overview.

- Add url for download.

- Add obsoletes/provides for old libname so depending pkgs work.
  * drop no longer needed lpsolve-5.5.0.11-cflags.patch we use
    autotools now.
  * drop no longer needed lpsolve-pic.diff for the same reason.

- Use the spec-beautifier to make it more readable.

- Drop duplication of the license string.

- Last commit was really bad idea.

- Drop useless requires line.

- Try to version bump on 5.5.2.0 based of Gentoo.

- SPARC requires large PIC model

- initial version 5.5.0.13
- based on the spec file by Steve Cundy and Caolan McNamara