bugfix: didn't set next to NULL for the output header.

Move the LICENSE content to a separate file.

tests: suppress stderr for use cases with conf parsing errors. (#158)

tests: suppress stderr for use cases with conf parsing errors. (#158)

bugfix: remove the Set-Cookie restriction of `-a` option.

feature: add append mode for more_set_headers(so far just for Set-Coo…

…kie field).

doc: Fix typo. (#97)

doc: bumped version to 0.33.

doc: bumped version to 0.32.

doc: bumped version to 0.31.