Don't crash on null metacontact.
Don't crash on null metacontact.

Does this fix the bug 76986 ? Please test and feed-back.
this patch is a candidate for backporting

CCMAIL: 76986@bugs.kde.org

svn path=/trunk/kdenetwork/kopete/; revision=295221

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