ex 10, enabling trace

[cfjedimaster]

When you enable trace in ex10, you end up removing the previous values (inspector, etc) set in ex9. That may not be expected and if the user still wants to debug, they won't be able to. I'd update the instructions to add +trace to the previous entry as well as saying something along the lines of "if you just did trace, you would remove the previous setting, blah blah".

[jasnell]

+1