Ping 테스트

1.7.03
- Remove annoying notification from status bar upon completion. I am very sorry for putting it there in the first place.
- Fixed crashes on some devices.

1.7.02
- Change to ask you to only agree once - Thank you John Moreau & Donald Weinshank for the feedback.

1.7.01
Refresh app with a new icon.
Rewrite large part of the program to support pinging in the background.
Adapt app to larger screen devices.
Display ads when exiting the application.