Import AppImageUpdate

.gitignore

 *.pro.user
 build_*/
 lib/qtlib/
+lib/AppImageUpdate/

scripts/import.sh

@@ -5,3 +5,8 @@ PROJDIR="$(cd "$(dirname "${0}")/../" && pwd)"
 if [ ! -d "${PROJDIR}/lib/qtlib" ]; then
     git clone https://github.com/akiraohgaki/qtlib.git -b release-0.2.1 --single-branch --depth=1 "${PROJDIR}/lib/qtlib"
 fi
+
+if [ ! -d "${PROJDIR}/lib/AppImageUpdate" ]; then
+    git clone https://github.com/AppImage/AppImageUpdate.git -b continuous --single-branch --depth=1 "${PROJDIR}/lib/AppImageUpdate"
+    git -C "${PROJDIR}/lib/AppImageUpdate" submodule update --init --recursive --depth=1
+fi