Added support for archives per day (ADD_DAY_ARCHIVES).
Added support to create full archives (with list of all posts), which includes archive.html, per-year archives, per-month archives, and per-day archives at once (CREATE_FULL_ARCHIVES).
Added test for full archives.
Fixed name.
Added new string for per-day archives.
Fixed that per-day archives work without full archives or monthly archives being enabled.
Fix to improve Python 3 compatibility (see Issue #1493).
Fixed little remarks by Kwpolska in #1944.
Avoiding post_list and postlist in variable and function names (see discussion in #1494).
Removed local variable which was no longer needed.
Renamed setting ADD_DAY_ARCHIVES to CREATE_DAILY_ARCHIVE
Fixed style according to `flake8 --ignore=E501 .`.
Merge pull request #1494 from felixfontein/archive_extension

Archive extension