pack script introduced and several bugs fix.

scripts/ablrun-appimage

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+if [ "$*" = "" ]
+then
+    echo "usage: $0 [appimage-file [arguments ...]]"
+    echo "    This is helper script to run appimages for additional-base-lib."
+    echo
+    echo "    You have to ensure input file IS an appimage, for this script"
+    echo "    does not check. If you input other files, It will become"
+    echo "    unpredictable."
+    exit
+fi
+
+ABLIMAGE_PARAMETERS=("$@")
+
+coproc "$1" --appimage-mount
+
+ABLIMAGE_PID=$!
+
+cleanup() {
+    kill $ABLIMAGE_PID
+    exit
+}
+trap cleanup SIGHUP
+trap cleanup SIGINT
+trap cleanup SIGTERM
+
+if [ ! -e /proc/$! ]
+then
+    echo "Child process failed."
+    exit 1
+fi
+
+read -u ${COPROC[0]} ABLIMAGE_DIR
+
+ablrun-normal "$ABLIMAGE_DIR/AppRun" ${ABLIMAGE_PARAMETERS[@]:1}
+
+cleanup