diff --git a/.gitmodules b/.gitmodules
index ff90f39..0a921d8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "cmake"]
 	path = cmake/backbone
 	url = git@git.backbone.ws:cmake/backbone.git
+[submodule "util/backbone"]
+	path = util/backbone
+	url = git@git.backbone.ws:cmake/backbone-utils.git
diff --git a/util/backbone b/util/backbone
new file mode 160000
index 0000000..aa78f6d
--- /dev/null
+++ b/util/backbone
@@ -0,0 +1 @@
+Subproject commit aa78f6d42c85f7f9a98a1a6273230a9775824fc7
diff --git a/util/update-po.sh b/util/update-po.sh
deleted file mode 100755
index 465f724..0000000
--- a/util/update-po.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/bin/sh
-
-##
-# settings
-##
-PO_DIR_NAME=po
-EXE_PATH="`readlink -f $0`"
-PRJ_PATH="${EXE_PATH%/*/*}"
-C_FILELIST="${PRJ_PATH}/src/*.vala"
-UI_FILELIST="${PRJ_PATH}/ui/*.glade"
-SOURCE_POT=source.pot
-GLADE_POT=glade.pot
-
-##
-# code
-##
-PROJECT_LOWERCASE_NAME=`grep '\<SET *(PROJECT_LOWERCASE_NAME\>' "$PRJ_PATH"/CMakeLists.txt | sed 's~.*"\(.*\)".*~\1~'`
-MAJOR=`grep '\<SET *(MAJOR\>' "$PRJ_PATH"/CMakeLists.txt | sed 's~.*\([0-9]\+\).*~\1~'`
-PROJECT_LOWERCASE_NAME_ABI="$PROJECT_LOWERCASE_NAME-$MAJOR"
-
-xgettext --language=C --escape --package-name=$PROJECT_LOWERCASE_NAME_ABI --default-domain=$PROJECT_LOWERCASE_NAME_ABI --add-comments=/// \
-  -k_ -kQ_ -kC_ -kN_ -kNC_ -kg_dgettext -kg_dcgettext \
-  -kg_dngettext -kg_dpgettext -kg_dpgettext2 -kg_strip_context -F -n -o \
-  $PRJ_PATH/$PO_DIR_NAME/$SOURCE_POT $C_FILELIST
-
-xgettext --language=C --escape --package-name=$PROJECT_LOWERCASE_NAME_ABI --default-domain=$PROJECT_LOWERCASE_NAME_ABI --add-comments=/// \
-  -k_ -kQ_ -kC_ -kN_ -kNC_ -kg_dgettext -kg_dcgettext \
-  -kg_dngettext -kg_dpgettext -kg_dpgettext2 -kg_strip_context -F -n -o \
-  $PRJ_PATH/$PO_DIR_NAME/$GLADE_POT $C_FILELIST
-
-msgcat -o $PRJ_PATH/$PO_DIR_NAME/$PROJECT_LOWERCASE_NAME_ABI.pot --use-first $PRJ_PATH/$PO_DIR_NAME/$SOURCE_POT $PRJ_PATH/$PO_DIR_NAME/$GLADE_POT
-
-rm $PRJ_PATH/$PO_DIR_NAME/$SOURCE_POT
-rm $PRJ_PATH/$PO_DIR_NAME/$GLADE_POT
-
-[ 0 != $? ] && echo "xgettext failed ;-(" && exit 1
-[ ! -e $PRJ_PATH/$PO_DIR_NAME/$PROJECT_LOWERCASE_NAME_ABI.pot ] && echo "No strings found ;-(" && exit 1
-
-for d in $PRJ_PATH/$PO_DIR_NAME/*; do
-  [ ! -d $d ] && continue
-
-  if [ -e $d/$PROJECT_LOWERCASE_NAME_ABI.po ]; then
-    echo "Merging '${d##*/}' locale" && msgmerge -F -U $d/$PROJECT_LOWERCASE_NAME_ABI.po $PRJ_PATH/$PO_DIR_NAME/$PROJECT_LOWERCASE_NAME_ABI.pot
-    [ 0 != $? ] && echo "msgmerge failed ;(" && exit 1
-  else
-    echo "Creating '${d##*/}' locale" && msginit -l ${d##*/} -o  $d/$PROJECT_LOWERCASE_NAME_ABI.po -i $PRJ_PATH/$PO_DIR_NAME/$PROJECT_LOWERCASE_NAME_ABI.pot
-    [ 0 != $? ] && echo "msginit failed ;(" && exit 1
-  fi
-
-done
diff --git a/util/valadoc.sh b/util/valadoc.sh
deleted file mode 100755
index 911f164..0000000
--- a/util/valadoc.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-
-##
-# settings
-##
-BROWSER=firefox
-
-##
-# code
-##
-EXE_PATH="`readlink -f $0`"
-PRJ_PATH="${EXE_PATH%/*/*}"
-PROJECT_LOWERCASE_NAME=`grep '\<SET *(PROJECT_LOWERCASE_NAME\>' "$PRJ_PATH"/CMakeLists.txt | sed 's~.*"\(.*\)".*~\1~'`
-
-OUT_PATH="$PRJ_PATH/doc/html/$PROJECT_LOWERCASE_NAME"
-OUT_INTERNAL_PATH="$PRJ_PATH/doc/html/$PROJECT_LOWERCASE_NAME-internals"
-
-VALA_BASEDIR=`grep -v '\.\.' "$PRJ_PATH"/valadoc_env | grep '^BASEDIR=[-+A-Za-z0-9. ]\+$' | cut -d= -f2`
-VALA_PKGS=`grep -v '\.\.' "$PRJ_PATH"/valadoc_env | grep '^PKGS=[-+A-Za-z0-9. ]\+$' | cut -d= -f2 | sed 's~\(^\| \)~ --pkg=~g; s~^ ~~'`
-
-echo "Generating documentation..."
-rm -rf "$OUT_PATH"
-echo VALA_BASEDIR=$VALA_BASEDIR
-echo VALA_PKGS=$VALA_PKGS
-valadoc --no-protected -o "$OUT_PATH" -b "$PRJ_PATH/$VALA_BASEDIR" `find "$PRJ_PATH/$VALA_BASEDIR" -name "*.vapi" -or -name "*.vala"` $VALA_PKGS
-$BROWSER "$OUT_PATH"/$PROJECT_LOWERCASE_NAME/index.htm &>/dev/null
-
-#echo "Generating internal documentation..."
-#rm -rf "$OUT_INTERNAL_PATH"
-#valadoc -o "$OUT_INTERNAL_PATH" -b "$PRJ_PATH/$VALA_BASEDIR" `find "$PRJ_PATH/$VALA_BASEDIR" -name "*.vapi" -or -name "*.vala"` $VALA_PKGS --internal
-
-#$BROWSER "$OUT_INTERNAL_PATH"/$PROJECT_LOWERCASE_NAME-internals/index.htm &>/dev/null