Closing/killing "Android Terminal Emulator" app

I have a Sprint LG G3 running Android 4.4.2. I'm using [Android Terminal Emulator](https://github.com/jackpal/Android-Terminal-Emulator/wiki) by Jackpal. It respawns after I close the app. I see the terminal process and the child shell but killing that way seems too manual. When I closed the only window from the dropdown list at the top, it closes temporarily, then reappears in the "Recent apps" list. There is an un-swipeable notification that says "Terminal session is running". When I tap on either the thumbnail or notification, the "Window 1" comes back. The only workaround I've found is rebooting. Any better ideas to really close this app?