Commit Briefs
Handle gracefully invalid link lines
`=>` without other fields is not a valid link line, so let's handle it by parsing it as a paragraph with the "=>" text in it.
support binary response body
see github issue #4
refactor the gemtext parser
The old one had various issue, for instance it failed to parse "#hello", and could mis-interpret lines starting with "=". The new one is more robust and handles optional spaces better.
add the line-eq generic function
it's useful for the (future) tests being able to compare lines.
~% instead of terpri
we need to terminate the line on the given stream, not on *standard-output*!