Add ability to start/restart adb server with custom command

[kuzalekon]

Greetings!

Sometimes you need to start the ADB-server with a custom command, for example: adb -a server nodaemon.
Now I first separately launch ADB with the custom command and then launch gnirehtet. If the ADB crashes with an error or stops - gnirehtet immediately restarts it, but with a standard command.

[rom1v]

(You can also create a script myadb which calls your adb command with your custom parameters, and reference it from the ADB environment variable.)