Fix order of virtual methods in Kopete::MimeTypeHandler
Fix order of virtual methods in Kopete::MimeTypeHandler

This patch fixing commit b86dac127960c1ec988300be883052b673584c76
and finally restoring libkopete binary compatibility.

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