0.18.0

Changelog

• 63ebc0b: Add log entries with req headers to aid debugging (@portante)
• 044cae2: Add new line to server POST response payload (@portante)
• 3697309: Bump github.com/urfave/cli/v2 from 2.25.1 to 2.25.3 (@dependabot[bot])
• d05a524: Marshal time stamp as string (@portante)
• f1cd9d0: Optional fix and formatting for replay template (@portante)
• 5d71dc7: Server checks content-type header first (@portante)
• 5969d6b: Use 1 MB buffers to avoid silent errors (@portante)