Merge branch 'jk/archive-tar-filter'

Merge branch 'jk/archive-tar-filter'

* jk/archive-tar-filter:
  upload-archive: allow user to turn off filters
  archive: provide builtin .tar.gz filter
  archive: implement configurable tar filters
  archive: refactor file extension format-guessing
  archive: move file extension format-guessing lower
  archive: pass archiver struct to write_archive callback
  archive: refactor list of archive formats
  archive-tar: don't reload default config options
  archive: reorder option parsing and config reading