properly save and load the config of new 'show hidden files' option
properly save and load the config of new 'show hidden files' option

svn path=/trunk/KDE/kdesdk/kate/; revision=939575

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