unmass-0.92-bp154.2.19

- Modernise spec file

- Spec file cleanup with spec-cleaner

- Updated to version 0.92:
  + Add support for Eudemons Online archives.
- Drop unmass-fix_error.patch no longer required for new code.
- Rebase unmass-no_return.patch.
- Add unmass-fix-unix-def.patch: Fix incorrect UNIX ifdef.
- Spec file clean up.

- fixed build
  * no_return.patch

- new package