* 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