fix qt 4 => 5 issue with string constructor
fix qt 4 => 5 issue with string constructor

jfmcarreira/kate,sandsmark/kate,cmacq2/kate,jfmcarreira/kate,sandsmark/kate,DickJ/kate,DickJ/kate,sandsmark/kate,DickJ/kate,cmacq2/kate,cmacq2/kate,DickJ/kate,jfmcarreira/kate,sandsmark/kate