Use GPG key 0x08302DB6A2670428 to check signatures. Noteworthy changes

• Fix file overwrite issue with metalink
• Fix remote buffer overflow in get_local_filename_real()
• Fix a redirect/mirror regression from 400713ca
• Use the local system timestamp when requested via --no-use-server-timestamps
• Prevent file truncation with --no-clobber
• Improve messages about why URLs are not being followed
• Fix metalink with -O/--output-document
• Fix sorting of metalink mirrors by priority
• Add --show-progress to improve backwards compatibility to wget
• Fix buffer overflow in wget_iri_clone() after wget_iri_set_scheme()
• Allow 'no_' prefix in config options
• Use libnghttp2 for HTTP/2 testing
• Fix WolfSSL build issue if SSLv2 isn't built into the library
• Set exit status to 8 on 403 response code
• Fix convert-links
• Fix --server-response for HTTP/1.1
• Fix anchor links in README.md for Gitlab
• Fix html examples in the documentation
• Improvements on code, docs and CI/testing