implement SIGINT/Ctrl-C handler in reversible estimator

[fabian-paul]

It would be nice if the reversible estimator could be stopped in an Ipython notebook by clicking Kernel->Interrupt. It seems that one needs to implement a handler in the C extension for this to work.

[marscher]

writing a signal handler is a no brainer, in case you just want to forcefully terminate the function execution.

[fabian-paul]

Ok, then thank you for nothing! ;-)

[fabian-paul]

Why can't I assign myself to the issue here on github?

[marscher]

good questions.