Linux scripts now use kdialog/zenity where appropriate to show error messages. No longer expect users to have a terminal open git-svn-id: http://svn.dmdirc.com/trunk@2763 00569f92-eb28-0410-84fd-f71c24880f
git-svn-id: http://svn.dmdirc.com/trunk@2752 00569f92-eb28-0410-84fd-f71c24880f
git-svn-id: http://svn.dmdirc.com/trunk@2741 00569f92-eb28-0410-84fd-f71c24880f