Don't try to read the image if the file size is zero.
Don't try to read the image if the file size is zero.

Should fix bug 77100

CCMAIL: 77100-done@bugs.kde.org

svn path=/trunk/kdenetwork/kopete/; revision=307619

josh-wambua/kopete,Jtalk/kopete-fork-xep0136,josh-wambua/kopete,Jtalk/kopete-fork-xep0136,Jtalk/kopete-fork-xep0136,josh-wambua/kopete,josh-wambua/kopete,josh-wambua/kopete,josh-wambua/kopete,josh-wambua/kopete,Jtalk/kopete-fork-xep0136,Jtalk/kopete-fork-xep0136,Jtalk/kopete-fork-xep0136