jannet: Move show_installed_jannet_software.sh into jannet info

scripts/jannet

@@ -23,6 +23,7 @@ cat << EOT
     uninit:   undo initialization
     install:  install packages in [arguments]
     update:   update all jannet software on the system
+    info:     query information about installed software
 
 EOT
 	if [ "$1" ]; then
@@ -63,7 +64,9 @@ install)
 	sudo smart update ftp.jannet.de
 	sudo smart install -y $*
 	;;
-
+info)
+	rpm -qai | grep -iB 7 "jannet.de\|c-mexx.com"
+	;;
 help)
 	usage 0
 	;;