Update wiki for Dalli 5.0
- Remove binary protocol and SASL references throughout
- Delete Heroku page (outdated SASL examples, Heroku no longer offers memcached add-ons)
- Convert Home from textile to markdown, update feature list
- Create Advanced Features page (get_with_metadata, fetch_with_lock, bulk ops, dynamic namespaces)
- Create OpenTelemetry Tracing page
- Rewrite Client Options (add new options, remove deprecated ones, reorganize into groups)
- Rewrite Requirements page (Ruby 3.2+, memcached 1.6+, meta protocol only)
- Update Getting Started with version requirements and bulk ops example
- Update Server Configuration (remove SASL URI format)
- Update Serialization/Compression (add string_fastpath, client-level raw, Marshal warning)
- Update Quiet Mode (mention set_multi/delete_multi)
- Update Rails page (Marshal warning workaround, bulk ops, OTel)
- Update Sidebar navigation (add new pages, remove Heroku)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>