show connection status - easier logging/debugging

[shineangelic]

OBD2AA is an integration app, that has some mandatory run-time requirements documented in the project's homepage. Even tho these instructions are quite clear, I had some difficulty understanding what was happening when configuring/starting the app.

Restarting the app entirely was somehow difficult as well, I had the sensation something was still running and only reinstalling the app did the trick.

A dedicated section to show runtime statuses (Torque connected - AA running/connected etc.) and/or restart them would be of great help in order to troubleshoot issues