new: [monujo] keep original source directory to avoid the need to relaunch frontends

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

monujo/lib/common

@@ -18,8 +18,11 @@ monujo:code_init() {
             return 0
         fi
     fi
-    [ -d "$LOCATION" ] && rm -rf "$LOCATION"
+    if [ -d "$LOCATION" ]; then
+        find "$LOCATION" -mindepth 1 -delete
+    else
         mkdir -p "$LOCATION"
+    fi
     cd "$LOCATION"
     info "Downloading '$SOURCE_URL'."
     wget -q "$SOURCE_URL" -O file.tar.bz2 || {