Add a 'verbose' parameter to @DebugLog which en-/disables the logging

[tschob]

I would like to be able to give @debuglog a parameter which en-/disables the logging. I don't wan't to see all logs everytime. So eg. if I'm interested in the api logs I would adjust my verbose constant to see them and if I'm interested in other parts I can disable them (to don't be distracted).

[JakeWharton]

Couldn't you just comment out the annotation to the same effect?

[tschob]

It would have the same effect, of course. But it's not my understanding of clean code and working efficiency to (un-)comment multiple lines of code instead of using one constant for it.

That's why there exists Hugo, isn't it? At least it would have the same effect to do a manually log in each method too. But it's not as clean and useful as the @debuglog approach.

[JakeWharton]

I think I'll move the Hugo class into the public API and give it some options including a log hook for #60

[JakeWharton]

And, obviously, a setting for this

[JakeWharton]

Hugo.setEnabled just merged.