Clone bludit repo within images

src/freedombone-image-customise

     fi
 
     git clone "$CRYPTPAD_REPO" "$rootdir/repos/cryptpad"
+    git clone "$BLUDIT_REPO" "$rootdir/repos/bludit"
     git clone "$DOKUWIKI_REPO" "$rootdir/repos/dokuwiki"
     git clone "$ETHERPAD_REPO" "$rootdir/repos/etherpad"
     git clone "$FRIENDICA_REPO" "$rootdir/repos/friendica"