Add halted_callback to the log output

[jeremybdk]

Sometimes when you do the final render or redirection, it can be halted by a controller callback. With the existing code, it can very hard to understand where it stopped.

With this commit, the intent is to provide the method name where it stops.

So I started from #259 work and because it was not maintained anymore I moved the code the to base subscriber to have the halted callback.

Would that be the way to do it? Not sure but I try to keep @benoittgt code and integrate it in the codebase

[jeremybdk]

Actually it won't work for all the case like this, need to figure out how to do this properly