Mehari 0.3

Full changelog: 1b1d6ea...f78102e

Performance:

• Optimize router. This musts lead to better performance when many regex route are matched (#66)
• Optimize Gemtext support and Format module compatibility (#67)

Bug fixes:

• Decode URL path in Mehar_*.static. This means that file with filename containing percent encoded character are now served instead of responding 51 not found (8f1ac74)
• Remove wild UNIX syscall in mehari-eio (#65)
• In Gemtext preformat block, alt text is now parsed correctly and last newline is trimmed (d3e6a60)

Other changes:

• Use X509.Certificate instead of Tls.Core.Cert (1b1d6ea, @hannesm)
• Remote private API of doc (8990993)
• mehari doesn't depend anymore on mirage-clock
• mehari-mirage and mehari-lwt-unix doesn't depend anymore on lwt_ppx
• mehari-eio doesn't depend anymore on uri and mirage-clock-unix