title: make any installed app debuggable
body: <p>I want to debug apps installed in my phone. But before it they must be set debuggable. So I want to know if there is any method to do it on emulator or phone ? And also is it legal to do so ? I tried <code>adb shell am start -D -n 'package_name'/.'activityname'</code> command, but it does not open any jdwp port to connect to by debugger, as I see it by running <code>adb jdwp</code> command. </p>