ldapfuse-1.0-bp151.2.15

- Drop gpg-offline build-time requirement; this is now handled by
  the local source validator

- Verify GPG signature

- Update to new upstream release 1.0
  * Initial upstream tarball release
  * ldapfuse: correct wrong error type in cache lookup failure path

- Explicitly include lber in compilation and linking to avoid
  running into missing symbols

- Initial package