Log Message:
Update "xchat" and "xchat-gnome" package to version 1.8.10. \ 
Changes
since version 1.8.9:
- Fixed Russian translation errors (Anton Farygin).
- Included missing Polish po file.
- Updated Traditional Chinese translation (Kevin Peng).
- Updated Catalan translation (Antoni Bella).
- Added Vietnamese translation (pclouds).
- Fixed crash on large notify list.
- xtext: minor speedup tweaks.
- xtext: fixed copy on Solaris (don't use "CLIPBOARD" atom).
- Fixed /query #foo, /join #foo crash.
- win32: added (slow) tinted transparency.
- Added mIRC's passive dcc support, receiving only (Richard Fuchs).
- Added basic HTTP proxy authentication support (Anton Voloshin).
- Don't open window beyond the size of virtual desktop size
  (Jason Wies).
- Fixed GTK warnings apon saving userlist-buttons when a query tab
  was open (Lloyd Williams).
- Use $datadir/locale for LOCALEDIR (Albert Chin-A-Young).
- Some C89 fixes (Albert Chin-A-Young).