Includes a few minor fixes:
- frontend: support setting port for WHOIS server
- proxy: fix handling of very long lines
- proxy: refactor IP allowlist logic, parse allow IP list at startup
* bgpmap: Compact nexthop info into an edge label
* bgpmap: parse and show non-BGP routes
* bgpmap: Misc tweaks
- Show the protocol name instead of the ASN in edge labels
- Correctly draw only the primary path if there are multiple routes to the first neighbour ASN in a path
- Use a smaller font size for edge labels
* bgpmap_test: update to match new changes
* bgpmap: Split route info on all (non-empty) rta_dest_names values
