5.7

• Added optional support for the "autoupdate" field that allows triggering unattended plugin updates. To enable it, you need to both set autoupdate to true in plugin update metadata and call $updateChceker->allowAutoupdateField() in your plugin. Props to @hisman for part of the implementation.
• BitBucket: Added support for basic auth with API tokens. Props to @cristianozanca for part of the implementation.
• BitBucket: Removed OAuth 1 support since it's no longer supported by BitBucket.
• Replaced all htmlentities() calls with esc_html(). This takes advantage of automatic character set detection in WP core, and should eliminate some static analysis warnings. See #597.
• Replaced all wp_redirect() calls with wp_safe_redirect(). This shouldn't matter in practice since PUC only ever does internal redirects, but it pacifies some static analysis tools. See #597.
• Added and updated translations:
  • Persian (@aljvdi)
  • Simplified Chinese (zh_CN, @seatonjiang)
  • Traditional Chinese (zh_TW, @alexclassroom)