Bug Fixes

• Use archived link for X documentation resource (thanks @yaxollum).
• Fix for auth entry having no display number (thanks @Majiir).
• Fix return type inconsistency with the pack_value for class Object (thanks @allfro).
• Rename add_extension_error method to extension_add_error (thanks @mattalexx).

Extensions

• screensaver: fix screensaver protocol mismatch (thanks @yut23).
• XRandr: add version 1.5 support for RRSetMonitor RRGetMonitors and RRDeleteMonitors (thanks @allfro and @jklong).